2.4.0.84170 - Disclosure - Subsequent Events (Details)truefalseIn Thousands, except Share data, unless otherwise specifiedfalse1false USDfalsefalse$D2014Q1ITDhttp://www.sec.gov/CIK0001477032duration2010-08-05T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2false falsefalseI2013http://www.sec.gov/CIK0001477032instant2013-03-31T00:00:000001-01-01T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli03false truefalseD2014Q1_BuffaloManagementLlcMemberhttp://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli04false USDtruefalse$I2013Q2_M0801_BuffaloManagementLlcMemberhttp://www.sec.gov/CIK0001477032instant2012-08-01T00:00:000001-01-01T00:00:00falsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$5false truefalseD2014Q1_M0415_BuffaloManagementLlcMember_ExtensionAgreementMemberhttp://www.sec.gov/CIK0001477032duration2013-04-13T00:00:002013-04-15T00:00:00falsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseFirst Extension Agreementus-gaap_TypeOfArrangementAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_ExtensionAgreementMemberus-gaap_TypeOfArrangementAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli06false truefalseD2014Q1_BuffaloManagementLlcMember_ExtensionAgreementMemberhttp://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseFirst Extension Agreementus-gaap_TypeOfArrangementAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_ExtensionAgreementMemberus-gaap_TypeOfArrangementAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli07false truefalseD2014Q1_M0415_KarlssonGroupMember_ExtensionAgreementMemberhttp://www.sec.gov/CIK0001477032duration2013-04-13T00:00:002013-04-15T00:00:00falsefalseKarlsson Groupus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_KarlssonGroupMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseFirst Extension Agreementus-gaap_TypeOfArrangementAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_ExtensionAgreementMemberus-gaap_TypeOfArrangementAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli08false truefalseD2014Q1_KarlssonGroupMember_ExtensionAgreementMemberhttp://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseKarlsson Groupus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_KarlssonGroupMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseFirst Extension Agreementus-gaap_TypeOfArrangementAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_ExtensionAgreementMemberus-gaap_TypeOfArrangementAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli09false truefalseD2014Q1_KarlssonGroupMember_SecuredDebtMemberhttp://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseKarlsson Groupus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_KarlssonGroupMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePromissory notesus-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SecuredDebtMemberus-gaap_LongtermDebtTypeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli010false USDtruefalse$I2014Q1_M0502_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMemberhttp://www.sec.gov/CIK0001477032instant2013-05-02T00:00:000001-01-01T00:00:00falsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberUSDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$11false truefalseI2014Q2_M0814_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032instant2013-08-14T00:00:000001-01-01T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli012false USDtruefalseD2014Q2_M0814_RedeemablePreferredStockMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-08-13T00:00:002013-08-14T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseRedeemable Preferred Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RedeemablePreferredStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0TonneStandardhttp://www.xbrl.org/2009/utrtutr0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0$13false USDtruefalseD2014Q1_WarrantMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseWarrantus-gaap_ClassOfWarrantOrRightAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WarrantMemberus-gaap_ClassOfWarrantOrRightAxisexplicitMemberUSDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0$14false USDtruefalse$I2014Q2_M0814_WarrantMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032instant2013-08-14T00:00:000001-01-01T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseWarrantus-gaap_ClassOfWarrantOrRightAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WarrantMemberus-gaap_ClassOfWarrantOrRightAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$15false truefalseD2014Q1_M0814_BuffaloManagementLlcMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-08-13T00:00:002013-08-14T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli016false truefalseI2014Q2_M0814_BuffaloManagementLlcMember_RedeemablePreferredStockMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032instant2013-08-14T00:00:000001-01-01T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseRedeemable Preferred Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RedeemablePreferredStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli017false truefalseI2014Q2_M0814_WarrantMember_BuffaloManagementLlcMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032instant2013-08-14T00:00:000001-01-01T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseBuffalous-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseWarrantus-gaap_ClassOfWarrantOrRightAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WarrantMemberus-gaap_ClassOfWarrantOrRightAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli018false truefalseD2014Q2_M0814_BuffaloManagementLlcAndAffiliatesMember_RedeemablePreferredStockMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-08-13T00:00:002013-08-14T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseBuffalo Management and affiliatesus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_BuffaloManagementLlcAndAffiliatesMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalseRedeemable Preferred Stockus-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RedeemablePreferredStockMemberus-gaap_StatementClassOfStockAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli019false USDtruefalse$D2014Q2_M0710_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-07-09T00:00:002013-07-10T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$20false USDtruefalseD2014Q2_M0710_IssuanceOfEquityMember_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMember_SubsequentEventMemberhttp://www.sec.gov/CIK0001477032duration2013-07-09T00:00:002013-07-10T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePublic Offeringus-gaap_FinancingAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_IssuanceOfEquityMemberus-gaap_FinancingAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0$21false truefalseD2015Q3_M1231_IssuanceOfEquityMember_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMember_SubsequentEventMember_ScenarioForecastMemberhttp://www.sec.gov/CIK0001477032duration2014-12-30T00:00:002014-12-31T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePublic Offeringus-gaap_FinancingAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_IssuanceOfEquityMemberus-gaap_FinancingAxisexplicitMemberfalsefalseForecastus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ScenarioForecastMemberus-gaap_StatementScenarioAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli022false truefalseD2015Q2_M0615_IssuanceOfEquityMember_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMember_SubsequentEventMember_ScenarioForecastMemberhttp://www.sec.gov/CIK0001477032duration2014-06-14T00:00:002014-06-15T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePublic Offeringus-gaap_FinancingAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_IssuanceOfEquityMemberus-gaap_FinancingAxisexplicitMemberfalsefalseForecastus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ScenarioForecastMemberus-gaap_StatementScenarioAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli023false truefalseD2013Q3_M1215_IssuanceOfEquityMember_VeryHungryAndScottReiman1991TrustMember_UnsecuredSubordinatedPromissoryNotesMember_SubsequentEventMember_ScenarioForecastMemberhttp://www.sec.gov/CIK0001477032duration2013-12-14T00:00:002013-12-15T00:00:00falsefalseSubsequent Eventsus-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseUnsecured subordinated promissory notesus-gaap_ShortTermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_UnsecuredSubordinatedPromissoryNotesMemberus-gaap_ShortTermDebtTypeAxisexplicitMemberfalsefalseVery Hungry and the Scott Reiman 1991 Trustus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldipgrx_VeryHungryAndScottReiman1991TrustMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberfalsefalsePublic Offeringus-gaap_FinancingAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_IssuanceOfEquityMemberus-gaap_FinancingAxisexplicitMemberfalsefalseForecastus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ScenarioForecastMemberus-gaap_StatementScenarioAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli01true 3us-gaap_SubsequentEventLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent Events2false 4us-gaap_DebtConversionConvertedInstrumentAmount1us-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse94930009493USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19truefalsefalse55000005500USD$falsetruefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 false2Amount of debt exchanged3false 4us-gaap_DebtConversionConvertedInstrumentSharesIssued1us-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15truefalsefalse1500000015000000falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19truefalsefalse55000005500000falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesThe number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 false1Number of senior mandatorily convertible preferred stock shares issued for exchange of unsecured subordinated promissory notes4false 4us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse2.602.60USD$falsetruefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10truefalsefalse0.300.30USD$falsetruefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13truefalsefalse0.070.07USD$falsetruefalse14truefalsefalse0.1440.144USD$falsetruefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20truefalsefalse0.120.12USD$falsetruefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalseus-types:perUnitItemTypedecimalThe exercise price of each class of warrants or rights outstanding.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 4 -Article 4 false3Exercise price (in dollars per share)5false 4us-gaap_StockholdersEquityNoteStockSplitConversionRatious-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20truefalsefalse5050falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalThis item represents the conversion ratio used in the calculation of a stock split.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770 false0Reverse stock split6false 4pgrx_PreferredStockDividendRateAccrualPercentagepgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21truetruefalse0.300.30falsefalsefalse22truetruefalse0.250.25falsefalsefalse23truetruefalse0.200.20falsefalsefalsenum:percentItemTypepureRepresents the percentage at which dividends will accrue on preferred stock in case shareholder's approval for conversion is not obtained at the annual general meeting of the entity.No definition available.false0Preferred stock dividends accrual (as a percent)7false 4pgrx_PreferredStockVotingPowerOfAllCommonStockAndPreferredStockHeldExpressedAsPercentageOfOutstandingVotingPowerMaximumpgrx_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20truetruefalse0.19990.1999falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the maximum voting power of all common stock and preferred stock held by the preferred stockholders expressed as a percentage of the outstanding voting power.No definition available.false0Maximum voting power of all common stock and preferred stock held as a percentage of outstanding voting power8false 4pgrx_PercentageOfGrossRevenuepgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3truetruefalse0.010.01falsefalsefalse4falsetruefalse00falsefalsefalse5truetruefalse0.020.02falsefalsefalse6truetruefalse0.010.01falsefalsefalse7truetruefalse0.010.01falsefalsefalse8truetruefalse0.020.02falsefalsefalse9truetruefalse0.010.01falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the percentage of gross revenue.No definition available.false0Percentage of gross revenue9false 4us-gaap_TemporaryEquitySharesIssuedus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16truefalsefalse1500000015000000falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesThe number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Subparagraph b -Article 5 false1Number of shares of redeemable preferred stock issued10false 4pgrx_ClassOfWarrantOrRightTermpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse005 yearsfalsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the term of the warrants.No definition available.false0Exercise period11false 4us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse26204542620454falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17truefalsefalse5026417450264174falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesThe specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 false1Number of common stock that can be purchased against warrants (in shares)12false 4us-gaap_TemporaryEquityLiquidationPreferencePerShareus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12truefalsefalse1.001.00USD$falsetruefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsenum:perShareItemTypedecimalThe per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false3Liquidation preference (in dollars per share)13false 4pgrx_MarketCapitalizationCapPercentageForPreferredStockLiquidationPreferenceAsConsiderationpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12truetruefalse0.100.10falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the consideration in the form of liquidation preference as a market capitalization cap percentage.No definition available.false0Market capitalization cap percentage for liquidation preference14false 4pgrx_DirectOrIndirectOwnershipInCommonEquityAsMinimumPercentageOfVotingPowerOfOutstandingSharesOfVotingStockRequiredBeforeStockLiquidationpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18truetruefalse0.500.50falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the direct or indirect ownership of the entity's common equity of the voting power of the outstanding shares of voting stock required before liquidation of stock.No definition available.false0Direct or indirect ownership of the entity's common equity of the voting power of the outstanding shares of voting stock before liquidation of stock15false 4pgrx_TemporaryEquityPreferredStockDividendRatePercentagepgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12truetruefalse0.080.08falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage rate used to calculate dividend payments on preferred stock classified as temporary equity.No definition available.false0Annual rate for dividend accrual (as a percent)16false 4pgrx_TemporaryEquityPeriodForDividendPaymentFollowingMonthInWhichSpecifiedQuantityOfPotashHasFirstBeenShippedForDeliverypgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse006 monthsfalsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period for dividend payment following the month in which a specified quantity of potash has first been shipped for delivery.No definition available.false0Period for dividend payment following the month in which a specified quantity of potash has first been shipped for delivery at Holbrook, Arizona facility17false 4pgrx_MinimumQuantityOfPotashThatHasFirstBeenShippedForDeliverypgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12truefalsefalse5000050000falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalRepresents the minimum quantity of potash that has first been shipped for delivery.No definition available.false256Minimum quantity of potash that has first been shipped for delivery at Holbrook, Arizona facility (in tonnes)18false 4pgrx_TemporaryEquityPeriodForRedemptionByIssuerpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse003 yearsfalsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period for redemption by issuer of security classified as temporary equity.No definition available.false0Period for redemption by issuer of redeemable preferred stock19false 4pgrx_TemporaryEquityPeriodForRedemptionByHolderFollowingMonthInWhichSpecifiedQuantityOfPotashHasFirstBeenShippedForDeliverypgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse003 years 6 monthsfalsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaRepresents the period for redemption by holder of security classified as temporary equity following the month in which a specified quantity of potash has first been shipped for delivery.No definition available.false0Period for redemption by holder of redeemable preferred stock following the month in which a specified quantity of potash has first been shipped for delivery at Holbrook, Arizona facility20false 4pgrx_ClassOfWarrantOrRightVotingPowerOfWarrantsTogetherWithOtherSharesHeldExpressedAsPercentageOfTotalVotingPowerOfOutstandingCommonStockMaximumpgrx_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14truetruefalse0.19990.1999falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17truetruefalse0.19990.1999falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalsenum:percentItemTypepureRepresents the maximum voting power of warrants together with other shares held by the warrantholders expressed as a percentage of the total voting power of the outstanding common stock.No definition available.false0Maximum voting power of warrants together with other shares held as a percentage of total voting power of the outstanding common stock21false 4us-gaap_CommonStockSharesOutstandingus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalsepositiveLabel1truefalsefalse115119415115119415falsefalsefalse2truefalsefalse7259571872595718falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11truefalsefalse115194415115194415falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesNumber of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 false1Common stock outstanding (in shares)falseSubsequent Events (Details) (USD $)ThousandsNoRoundingNoRoundingUnKnowntruefalsefalseSheethttp://www.prospectgri.com/role/DisclosureSubsequentEventsDetails2321