{
  "schema": "canli.company-reference.v1",
  "cik": "0000101295",
  "name": "UNITED-GUARDIAN, INC.",
  "selection_policy": "extended-v22",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000101295.json",
  "source_sha256": "eed4e430b46e0bef8c7ba82955662094e6f0ae10199cdc17e4834b80457f54cc",
  "fetched_at": "2026-09-19T14:53:49.697Z",
  "policy": "Latest-filed annual-report facts per unit and reporting period at capture time. Duration facts cover 300 to 400 days. This selection can include restatements and is not a point-in-time backtest dataset. Missing concepts are omitted, never zero-filled. Values retain original units and are not currency converted. Extended concepts require compatible unit shapes and at least three reporting ends with changing values within one unit. Constant or incompatible added histories are omitted.",
  "claim_boundary": "Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.",
  "concepts": [
    {
      "tag": "Assets",
      "taxonomy": "us-gaap",
      "label": "Total assets",
      "kind": "instant",
      "meaning": "Resources recognized on the balance sheet. Book assets are not the market value of the business.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 13108579,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 13797335,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 12922838,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 10640335,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 12242252,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 11920276,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 12362812,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 12544672,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 12852880,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 14866440,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 15688191,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 15939016,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 15650866,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 13859266,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 15255955,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 14074739,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Liabilities",
      "taxonomy": "us-gaap",
      "label": "Total liabilities",
      "kind": "instant",
      "meaning": "Recognized obligations at the reporting date. The definition and scope differ from interest-bearing debt.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1876567,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1914469,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 1534256,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquity",
      "taxonomy": "us-gaap",
      "label": "Stockholders equity",
      "kind": "instant",
      "meaning": "The reported residual interest after liabilities. It is an accounting amount, not market capitalization.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 11232012,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 11882866,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 11388582,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 9266644,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 9821269,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 10354307,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 10632898,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 10924938,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 11396642,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 13820489,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14581814,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 14736938,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 14235927,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 12838018,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 14114029,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 13046873,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 15657611,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1251097,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1875655,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 8243122,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 830452,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 531213,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 591444,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1048311,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 550135,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 724721,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 424301,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1080489,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 2023383,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1634262,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1748382,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1090974,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1514589,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 5021073,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Net income or loss",
      "kind": "duration",
      "meaning": "Reported profit or loss for the period. Check the filing for attribution, exceptional items and discontinued operations before comparing companies.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 2105738,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 3250875,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 2581370,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2569512,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 4658542,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 3304978,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 4761711,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 4352331,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3844290,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2581142,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4606929,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 4050416,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5903309,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 4830780,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4716530,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 3799692,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInOperatingActivities",
      "taxonomy": "us-gaap",
      "label": "Operating cash flow",
      "kind": "duration",
      "meaning": "Cash generated or used by operating activities. Working-capital timing can make this differ substantially from reported income.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 1966819,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 3466251,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 3144480,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2525169,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 5313277,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 3594240,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 4476111,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 4950412,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3992287,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2290444,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5805086,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 5380747,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4437129,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4093318,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsToAcquirePropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Capital expenditure payments",
      "kind": "duration",
      "meaning": "Cash payments to acquire property, plant and equipment. This taxonomy concept does not capture every form of investment or acquisition.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 58995,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 433077,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 165716,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 75179,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 116375,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 43395,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 113769,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 74993,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 38149,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 166689,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 62573,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 54590,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 288367,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 252356,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 274645,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 454554,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInFinancingActivities",
      "taxonomy": "us-gaap",
      "label": "Financing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from financing activities, including borrowing, repayments and transactions with owners. A positive amount does not establish operating profitability.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": -2766720,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -2756323,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -459387,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -3123492,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -5190033,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -3582431,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -5049922,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -4816239,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -6507249,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -3436867,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -4458544,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -6251158,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -3677151,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -8346117,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInInvestingActivities",
      "taxonomy": "us-gaap",
      "label": "Investing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from investing activities, including asset purchases, disposals and investment transactions. This differs from capital expenditure payments alone.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 175343,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -7077395,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 4727577,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 897562,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -183475,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -468676,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1071987,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -308759,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 2815382,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 490235,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -1460662,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1527819,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -1183593,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 746315,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RetainedEarningsAccumulatedDeficit",
      "taxonomy": "us-gaap",
      "label": "Retained earnings or deficit",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Accumulated undistributed earnings or deficit at the reporting date. This balance is not cash available for distribution.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 10772580,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 11423434,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 10929150,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 8807212,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 9361837,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 9894875,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 10173466,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 10465506,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 10471185,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 13185423,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14050021,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 14017425,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 13644160,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 12199395,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 13619773,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 12580394,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "EarningsPerShareBasic",
      "taxonomy": "us-gaap",
      "label": "Basic earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per basic common share or unit. Inspect attribution, share classes and restatements before comparing periods. This is not a market return.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 0.46,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 0.71,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 0.56,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 0.56,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 1.01,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "IncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Current and deferred income tax expense or benefit for continuing operations. This accounting expense differs from cash taxes paid.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 537277,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 857582,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 669408,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 658168,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 1219383,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 856022,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1268659,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1113523,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1706489,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1114925,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 2018482,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1704554,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2728553,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2095897,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2155117,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1713908,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentNet",
      "taxonomy": "us-gaap",
      "label": "Net property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of property, plant and equipment after accumulated depreciation, depletion and amortization. It is not replacement cost or market value.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 907182,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 956387,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 619195,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 559161,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 658862,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 673665,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 780707,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 827925,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 942887,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1090591,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1096113,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1207903,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1334501,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1235863,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1245487,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1209160,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Operating income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Operating revenue less operating expenses for the reporting period. It excludes items outside the reported operating result and is not free cash flow.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 2243348,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 3646789,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 2863032,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 4037230,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 5667086,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 3636170,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 5395965,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 5579843,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5235614,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 3389562,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 6293585,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 5490975,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 7301554,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 6098471,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 6135562,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5057814,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Assets classified as current under the normal operating cycle or one-year boundary. Not all current assets can be converted immediately into cash.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 12201397,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 12665551,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 12252713,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 9970630,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 11583390,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 11246611,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 11567281,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 11687100,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 11850522,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 13714172,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14517960,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 14663071,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 14307218,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 12623403,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 13972796,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 12790235,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1669321,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1914469,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 1534256,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1373691,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 2337761,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1414285,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1343059,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1366151,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 1422383,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1045951,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 988367,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 974970,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1245352,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 827508,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1077348,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1024240,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsPayableCurrent",
      "taxonomy": "us-gaap",
      "label": "Current accounts payable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current amounts owed to suppliers for goods and services received. This is one component of current liabilities, not all accrued obligations.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 480791,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 425003,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 134449,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 30415,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 410894,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 31800,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 71385,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 186797,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 354285,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 82821,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 96815,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 141111,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 385699,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 151385,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 400389,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 208244,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsReceivableNetCurrent",
      "taxonomy": "us-gaap",
      "label": "Net current accounts receivable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current customer receivables after the allowance for credit loss. The balance is not cash collected or a guarantee of collection.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1586889,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1428455,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 1566839,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1427576,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 1813346,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1387698,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 2098411,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1672567,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 1905415,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1597997,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 934754,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1593260,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1790747,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1017627,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1653440,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1090711,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingExpenses",
      "taxonomy": "us-gaap",
      "label": "Operating expenses",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Recurring operating costs under this accounting concept, generally excluding production costs included in cost of sales. Check filing presentation before combining expense subtotals.",
      "observations": [
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2122746,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1785160,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1852833,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1862290,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1910585,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2504526,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2508334,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2552790,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2567395,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InventoryNet",
      "taxonomy": "us-gaap",
      "label": "Net inventory",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Inventory carrying amount after applicable valuation and LIFO reserves. It does not establish realizable selling proceeds or inventory turnover without other inputs.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1507763,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1451995,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 1223506,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1672012,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 1410789,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1415773,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1217277,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1482151,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 1340523,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1255813,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1293642,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1237154,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1610747,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1242750,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1467434,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1321389,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CostOfRevenue",
      "taxonomy": "us-gaap",
      "label": "Cost of revenue",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Costs attributed to goods produced and sold and services provided during the period. This is not the sum of every operating expense.",
      "observations": [
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5301352,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4882644,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 5202158,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 5317707,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5610813,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 5218959,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 5650160,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5250121,
          "accn": "0001171843-12-001021",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-26",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ResearchAndDevelopmentExpense",
      "taxonomy": "us-gaap",
      "label": "Research and development expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Research and development costs recognized as expense. Capitalization policies and acquired projects can make this differ from total cash invested in development.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 463644,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 456779,
          "accn": "0001171843-26-001973",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 463992,
          "accn": "0001171843-25-001611",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-21",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 490770,
          "accn": "0001171843-24-001526",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-22",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 478642,
          "accn": "0001171843-23-001846",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-23",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 451208,
          "accn": "0001171843-22-002061",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 397391,
          "accn": "0001171843-21-001963",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 399517,
          "accn": "0001171843-20-002021",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 646079,
          "accn": "0001171843-19-001878",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 651828,
          "accn": "0001171843-18-002183",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 648211,
          "accn": "0001171843-17-001709",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-23",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 730412,
          "accn": "0001171843-16-008781",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 717000,
          "accn": "0001171843-15-001673",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-26",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 693000,
          "accn": "0001171843-14-001385",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-24",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 637000,
          "accn": "0001171843-13-001097",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-21",
          "frame": "CY2011",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/eed4e430b46e0bef8c7ba82955662094e6f0ae10199cdc17e4834b80457f54cc.json.gz"
}
