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For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred 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Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.","units":{"USD":[{"end":"2011-04-30","val":2986358,"accn":"0001415889-12-000379","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-16","frame":"CY2011Q1I"},{"end":"2011-04-30","val":2986358,"accn":"0001415889-11-001412","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-16"},{"end":"2011-04-30","val":2986358,"accn":"0001415889-11-001040","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-09-23"},{"end":"2011-07-31","val":2997720,"accn":"0001415889-11-001040","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-09-23","frame":"CY2011Q2I"},{"end":"2011-10-31","val":3001123,"accn":"0001415889-11-001412","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-16","frame":"CY2011Q3I"},{"end":"2012-01-31","val":3004526,"accn":"0001415889-12-000379","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-16","frame":"CY2011Q4I"}]}},"AdjustmentOfWarrantsGrantedForServices":{"label":"Adjustment of Warrants 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Alternate caption: Proceeds from Advances from 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":"Q3","form":"10-Q","filed":"2017-03-22"},{"start":"2016-05-01","end":"2017-01-31","val":99000,"accn":"0001493152-18-003865","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-03-26"},{"start":"2016-05-01","end":"2017-04-30","val":369000,"accn":"0001493152-17-009148","fy":2017,"fp":"FY","form":"10-K","filed":"2017-08-14"},{"start":"2016-05-01","end":"2017-04-30","val":369000,"accn":"0001493152-18-011813","fy":2018,"fp":"FY","form":"10-K","filed":"2018-08-14","frame":"CY2016"},{"start":"2017-05-01","end":"2017-07-31","val":231000,"accn":"0001493152-17-010729","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-09-19"},{"start":"2017-05-01","end":"2017-07-31","val":231000,"accn":"0001493152-18-013461","fy":2019,"fp":"Q1","form":"10-Q","filed":"2018-09-19","frame":"CY2017Q2"},{"start":"2017-05-01","end":"2017-10-31","val":231000,"accn":"0001493152-17-014858","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-12-20"},{"start":"2017-05-01","end":"2017-10-31","val":231000,"accn":"0001493152-18-017927","fy":2019,"fp":"Q2","form":"10-Q","filed":"2018-12-26"},{"start":"2017-05-01","end":"2018-01-31","val":423000,"accn":"0001493152-18-003865","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-03-26"},{"start":"2017-05-01","end":"2018-01-31","val":423000,"accn":"0001493152-19-003834","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-03-25"},{"start":"2017-05-01","end":"2018-04-30","val":504995,"accn":"0001493152-18-011813","fy":2018,"fp":"FY","form":"10-K","filed":"2018-08-14","frame":"CY2017"}]}},"ProceedsFromSaleOfPropertyPlantAndEquipment":{"label":"Proceeds from Sale of Property, Plant, and Equipment","description":"The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.","units":{"USD":[{"start":"2012-08-01","end":"2012-08-21","val":60000,"accn":"0001213900-16-011765","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-03-21","frame":"CY2012Q3I"},{"start":"2015-05-01","end":"2016-01-31","val":10000,"accn":"0001213900-16-011765","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-03-21"}]}},"ProceedsFromSaleOfRealEstate":{"label":"Proceeds from Sale of Real Estate","description":"Cash received for the sale of real estate that is not part of an investing activity during the current period.","units":{"USD":[{"start":"2013-05-01","end":"2014-04-30","val":85000,"accn":"0001213900-14-004531","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-27","frame":"CY2013"}]}},"ProceedsFromSaleOfTradingSecuritiesHeldforinvestment":{"label":"Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment","description":"The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).","units":{"USD":[{"start":"2012-08-02","end":"2012-08-21","val":60000,"accn":"0001213900-14-006804","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-09-22"},{"start":"2012-08-02","end":"2012-08-21","val":60000,"accn":"0001213900-14-009034","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-12-22"},{"start":"2012-08-02","end":"2012-08-21","val":60000,"accn":"0001213900-15-001987","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-03-23"},{"start":"2012-08-02","end":"2012-08-21","val":60000,"accn":"0001213900-15-006060","fy":2015,"fp":"FY","form":"10-K","filed":"2015-08-13"},{"start":"2012-08-02","end":"2012-08-21","val":60000,"accn":"0001213900-16-015982","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-15","frame":"CY2012Q3I"},{"start":"2013-05-01","end":"2013-07-31","val":60000,"accn":"0001213900-13-005317","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-23","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":60000,"accn":"0001213900-13-007374","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-23"},{"start":"2013-05-01","end":"2014-01-31","val":60000,"accn":"0001213900-14-001476","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-03-17"}]}},"ProceedsFromSalesOfAssetsInvestingActivities":{"label":"Proceeds from Sales of Assets, Investing Activities","description":"Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. 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