{
  "schema": "canli.company-reference.v1",
  "cik": "0001286181",
  "name": "U S Precious Metals Inc",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001286181.json",
  "source_sha256": "d7135f6b1ee464e1bf6e0689d200e97c0ac9265c74cf22292b44350980198396",
  "fetched_at": "2026-09-23T02:49:31.143Z",
  "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": "2015-05-31",
          "val": 272195,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 215536,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 230527,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 336302,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 441185,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "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": "2015-05-31",
          "val": -7096405,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": -4688465,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": -3651073,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": -2860196,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": -4968342,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2010-05-31",
          "val": -4213769,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2009-05-31",
          "val": -1782131,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2008-05-31",
          "val": 813382,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2007-05-31",
          "val": 335131,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2006-05-31",
          "val": 1001347,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2005-05-31",
          "val": 60106,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2004-05-31",
          "val": 63699,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "end": "2003-05-31",
          "val": 58076,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "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": "2014-05-31",
          "val": 121754,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 28691,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 116669,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 186551,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2010-05-31",
          "val": 393322,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010Q2I",
          "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": "2014-06-01",
          "end": "2015-05-31",
          "val": -6434009,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": -20567110,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": -4427017,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": -2886579,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": -3083077,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2009-06-01",
          "end": "2010-05-31",
          "val": -4653712,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2008-06-01",
          "end": "2009-05-31",
          "val": -6964811,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2007-06-01",
          "end": "2008-05-31",
          "val": -5028449,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2006-06-01",
          "end": "2007-05-31",
          "val": -898843,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2005-06-01",
          "end": "2006-05-31",
          "val": -280014,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2004-06-01",
          "end": "2005-05-31",
          "val": -226093,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2003-06-01",
          "end": "2004-05-31",
          "val": -313127,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2002-06-01",
          "end": "2003-05-31",
          "val": -215924,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "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": "2014-06-01",
          "end": "2015-05-31",
          "val": -2640334,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": -1177580,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": -699076,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": -823632,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": -1099521,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "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": "2014-06-01",
          "end": "2015-05-31",
          "val": 2698475,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 1157833,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 611098,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": 753750,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": 892750,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "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": "2015-05-31",
          "val": -55978765,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": -49544756,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": -28977646,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": -24550629,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": -21664050,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "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": "2015-05-31",
          "val": 15432,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 25543,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 35653,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 45762,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 66464,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2014-06-01",
          "end": "2015-05-31",
          "val": 2092270,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 2286583,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 3001933,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": 1164619,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": 790000,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-06-01",
          "end": "2010-05-31",
          "val": 636656,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "unit": "USD"
        },
        {
          "start": "2008-06-01",
          "end": "2009-05-31",
          "val": 2770000,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "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": "2014-06-01",
          "end": "2015-05-31",
          "val": -4851708,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": -20091129,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": -4213963,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": -2453863,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": -2410562,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "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": "2015-05-31",
          "val": 212657,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 145556,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 37453,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 130786,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 214062,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2014-06-01",
          "end": "2015-05-31",
          "val": 1632775,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 517234,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 213054,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "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": "2015-05-31",
          "val": 6797716,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 4719855,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 3881600,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 3196498,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 5409527,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CommonStockSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Common shares outstanding",
      "kind": "instant",
      "unitKind": "shares",
      "meaning": "Common shares outstanding at the reporting date. This point-in-time count differs from the weighted-average shares used for earnings per share and can exclude other share classes.",
      "observations": [
        {
          "end": "2015-05-31",
          "val": 164573557,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "shares"
        },
        {
          "end": "2014-05-31",
          "val": 143748746,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "shares"
        },
        {
          "end": "2014-02-28",
          "val": 135259321,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "unit": "shares"
        },
        {
          "end": "2014-01-31",
          "val": 135259321,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "unit": "shares"
        },
        {
          "end": "2013-05-31",
          "val": 121781244,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "shares"
        },
        {
          "end": "2012-05-31",
          "val": 103307633,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "shares"
        },
        {
          "end": "2011-05-31",
          "val": 78100646,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "AdditionalPaidInCapital",
      "taxonomy": "us-gaap",
      "label": "Additional paid-in capital",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Capital contributed above par value under this concept. It records historical contributions, not the current value of the equity or cash on hand.",
      "observations": [
        {
          "end": "2015-05-31",
          "val": 48880714,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 44854841,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 25325355,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 21689400,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 16694927,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Accumulated depreciation on property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative depreciation, depletion and amortization recorded against property, plant and equipment. It measures cost allocation to date, not physical wear or market value.",
      "observations": [
        {
          "end": "2015-05-31",
          "val": 118960,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 108849,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 98739,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 88630,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PrepaidExpenseAndOtherAssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Prepaid expenses and other current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Prepayments and other current assets grouped under this concept. The balance is not cash and its composition differs by filer.",
      "observations": [
        {
          "end": "2015-05-31",
          "val": 32762,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "unit": "USD"
        },
        {
          "end": "2014-05-31",
          "val": 23802,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014Q2I",
          "unit": "USD"
        },
        {
          "end": "2013-05-31",
          "val": 8762,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-05-31",
          "val": 14117,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-05-31",
          "val": 27511,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2011Q2I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "General and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "General and administrative costs reported under this concept, separate from selling expense. Filers group overhead differently, so compare presentation before comparing companies.",
      "observations": [
        {
          "start": "2014-06-01",
          "end": "2015-05-31",
          "val": 4851708,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 3841129,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 4213963,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": 2453863,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": 3102877,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Depreciation",
      "taxonomy": "us-gaap",
      "label": "Depreciation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Depreciation recognized for the period under this concept. It is a noncash allocation of asset cost and may exclude amortization and depletion reported elsewhere.",
      "observations": [
        {
          "start": "2014-06-01",
          "end": "2015-05-31",
          "val": 10111,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 10110,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 10109,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DepreciationDepletionAndAmortization",
      "taxonomy": "us-gaap",
      "label": "Depreciation, depletion and amortization",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Combined depreciation, depletion and amortization for the period. A noncash allocation of asset cost, not a measure of maintenance spending.",
      "observations": [
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 10109,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": 20702,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": 13037,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Total nonoperating income or expense, which can include interest, investment results and other items. A positive value is not operating profit.",
      "observations": [
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": -475981,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": -213054,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": -432716,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": -672515,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProceedsFromIssuanceOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Proceeds from issuing common stock",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash received from issuing common stock during the period. It is gross of costs only where the filer reports it so, and it does not include noncash issuances.",
      "observations": [
        {
          "start": "2014-06-01",
          "end": "2015-05-31",
          "val": 743475,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-06-01",
          "end": "2014-05-31",
          "val": 407500,
          "accn": "0001079973-15-000587",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-09-14",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-06-01",
          "end": "2013-05-31",
          "val": 587474,
          "accn": "0001079973-14-000482",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-10",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-06-01",
          "end": "2012-05-31",
          "val": 615000,
          "accn": "0001079973-13-000554",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-09-16",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-06-01",
          "end": "2011-05-31",
          "val": 497750,
          "accn": "0001079973-12-000708",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-09-13",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/d7135f6b1ee464e1bf6e0689d200e97c0ac9265c74cf22292b44350980198396.json.gz"
}