2.4.0.8400101 - Disclosure - Basis Of Presentation and General Information - Non Vessel Owning Subsidiaries (Table) (Details)truefalsefalse1false falsefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_CameliaNavigationMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:001false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_CameliaNavigationMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCamelia Navigation S.A.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_CameliaNavigationMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Camelia Navigation S.A.2true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]3false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-11-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_ExplorerShipholdingLimitedMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseExplorer Shipholding Limitedus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_ExplorerShipholdingLimitedMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Explorer Shipholding Limited5true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]6false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-11-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation7false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse3false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_EpicInvestmentsIncMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEpic Investments Inc.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_EpicInvestmentsIncMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Epic Investments Inc.8true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]9false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-12-21falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation10false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_OperaNavigationCoMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseOpera Navigation Co.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_OperaNavigationCoMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Opera Navigation Co.11true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]12false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-12-21falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse5false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_OvationServicesLtdMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseOvation Services Inc.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_OvationServicesLtdMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Ovation Services Inc.14true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]15false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002009-09-16falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation16false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse6false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_LetitiaShippingLimitedMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseLetitia Shipping Limitedus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_LetitiaShippingLimitedMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Letitia Shipping Limited17true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]18false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-05-04falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse7false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_ArdeliaNavigationLtdMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseArdelia Navigation Ltd.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_ArdeliaNavigationLtdMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Ardelia Navigation Ltd.20true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]21false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-06-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation22false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse8false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_EridanusTradingCoMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEridanus Trading Co.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_EridanusTradingCoMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Eridanus Trading Co.23true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]24false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-07-01falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation25false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse9false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_DelphisShippingMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseDelphis Shipping S.A.us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_DelphisShippingMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMembernanafalse0Delphis Shipping S.A.26true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-Vessel Owning Subsidiaries [Line Items]27false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002011-02-07falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of IncorporationfalseBasis Of Presentation and General Information - Non Vessel Owning Subsidiaries (Table) (Details)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.prgn.com/20130630/role/BasisOfPresentationAndGeneralInformationNonVesselOwningSubsidiariesTableDetails127