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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2In-kind contribution of services15true 3us-gaap_ChangeInAccountingEstimateAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Changes in operating assets and liabilities:16false 4us-gaap_IncreaseDecreaseInPrepaidExpenseus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse-211734-211734falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-211734-211734falsefalsefalsexbrli:monetaryItemTypemonetaryThe increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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