{ "schema": "canli.company-reference.v1", "cik": "0001434524", "name": "CLEARSIGN TECHNOLOGIES CORPORATION", "selection_policy": "extended-v22", "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001434524.json", "source_sha256": "780ea232846493d9d735f094db7ad9aa5aac07d0b98a62d678bb6f97e13a1c2a", "fetched_at": "2026-09-20T09:02:51.626Z", "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": 12181000, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "unit": "USD" }, { "end": "2024-12-31", "val": 16284000, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 7620000, "accn": "0001558370-25-004155", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-31", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 10925000, "accn": "0001558370-24-004441", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 9363000, "accn": "0001558370-23-005285", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-31", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 11121000, "accn": "0001558370-22-004842", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-31", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 10942000, "accn": "0001104659-21-044241", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-31", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 18637000, "accn": "0001104659-20-039929", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-30", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 4161000, "accn": "0001144204-19-013533", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-12", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 4286000, "accn": "0001144204-18-017160", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-27", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 14202000, "accn": "0001144204-17-008828", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-14", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 4599000, "accn": "0001144204-16-085858", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-03", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 4702000, "accn": "0001144204-15-012243", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-26", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 9115000, "accn": "0001144204-14-014814", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-11", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 1636000, "accn": "0001144204-13-010734", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011Q4I", "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": 2651000, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "unit": "USD" }, { "end": "2024-12-31", "val": 2520000, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 2428000, "accn": "0001558370-25-004155", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-31", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 1373000, "accn": "0001558370-24-004441", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 1081000, "accn": "0001558370-23-005285", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-31", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 1580000, "accn": "0001558370-22-004842", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-31", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 1716000, "accn": "0001104659-21-044241", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-31", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 1728000, "accn": "0001104659-20-039929", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-30", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 1729000, "accn": "0001144204-19-013533", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-12", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 2042000, "accn": "0001144204-18-017160", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-27", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 1624000, "accn": "0001144204-16-085858", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-03", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 1640000, "accn": "0001144204-16-085858", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-03", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 914000, "accn": "0001144204-15-012243", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-26", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 479000, "accn": "0001144204-14-014814", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-11", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 762000, "accn": "0001144204-13-010734", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011Q4I", "unit": "USD" } ] }, { "tag": "StockholdersEquity", "taxonomy": "us-gaap", "label": "Stockholders equity", "kind": "instant", "meaning": "The reported residual interest after liabilities. 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Potential shares are included under the applicable dilution rules, not simply added to outstanding shares.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 5551194, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 4893599, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 38500933, "accn": "0001558370-25-004155", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-31", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 35338712, "accn": "0001558370-24-004441", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 31230806, "accn": "0001558370-23-005285", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-31", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 2777119, "accn": "0001104659-21-044241", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-31", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 2211058, "accn": "0001104659-21-044241", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-31", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 3376061, "accn": "0001104659-20-039929", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-30", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 3489644, "accn": "0001144204-19-013533", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-12", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 1328128, "accn": "0001144204-18-017160", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-27", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 1287672, "accn": "0001144204-17-008828", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-14", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 1208089, "accn": "0001144204-16-085858", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-03", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 1109724, "accn": "0001144204-15-012243", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-26", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 920743, "accn": "0001144204-14-014814", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-11", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 575743, "accn": "0001144204-13-010734", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011", "unit": "shares" } ] }, { "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. 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A diluted value can equal the basic value without implying no potential dilution.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": -0.99, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -1.08, "accn": "0001104659-26-037699", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-31", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -0.13, "accn": "0001558370-25-004155", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-31", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -0.16, "accn": "0001558370-24-004441", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -0.25, "accn": "0001558370-23-005285", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-31", "frame": "CY2021", "unit": "USD/shares" } ] }, { "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. 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