2.4.0.8400100 - Disclosure - Basis of Presentation and General Information (Table) (Details)truefalsefalse1false falsefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_DeepSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00IntegerStandardhttp://www.xbrl.org/2003/instancepure01false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_DeepSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseDeep Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_DeepSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Deep Seas2true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]3false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7289172891falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT4false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse001999falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built5false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00December 2006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date6false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-11-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation7false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_CalmSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCalm Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_CalmSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Calm Seas8true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]9false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7404774047falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT10false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse001999falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built11false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00December 2006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date12false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-11-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse3false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_KindSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseKind Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_KindSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Kind Seas14true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]15false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7249372493falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT16false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse001999falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built17false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00December 2006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date18false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002006-11-15falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_PearlSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalsePearl Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_PearlSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Pearl Seas20true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]21false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7448374483falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT22false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built23false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00August 2007falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date24false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002007-07-04falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation25false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse5false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_SapphireSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseSapphire Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_SapphireSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Sapphire Seas26true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]27false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse5370253702falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT28false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002005falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built29false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00August 2007falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date30false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002007-07-17falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation31false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse6false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_DiamondSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseDiamond Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_DiamondSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Diamond Seas32true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]33false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7427474274falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT34false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002001falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built35false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00September 2007falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date36false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002007-07-17falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation37false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse7false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_CoralSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCoral Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_CoralSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Coral Seas38true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]39false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7447774477falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT40false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built41false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00November 2007falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date42false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002007-09-27falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation43false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse8false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_GoldenSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseGolden Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_GoldenSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Golden Seas44true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]45false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7447574475falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT46false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002006falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built47false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00December 2007falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date48false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002007-09-27falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation49false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse9false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_FriendlySeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseFriendly Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_FriendlySeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Friendly Seas50true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]51false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse5877958779falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT52false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002008falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built53false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00August 2008falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date54false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002008-06-19falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation55false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse10false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_DreamSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseDream Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_DreamSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Dream Seas56true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]57false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7515175151falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT58false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002009falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built59false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00July 2010falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date60false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-04-08falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation61false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse11false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_ProsperousSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseProsperous Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_ProsperousSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Prosperous Seas62true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]63false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3729337293falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT64false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002012falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built65false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00May 2012falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date66false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002009-08-05falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation67false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse12false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_PreciousSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalsePrecious Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_PreciousSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Precious Seas68true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]69false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3720537205falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT70false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002012falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built71false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00June 2012falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date72false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-04-06falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation73false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse13false truefalseQ2_2013_Dur_www.prgn.com_20130630_VesselCapacity_www.prgn.com_20130630_PricelessSeasMemberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalsePriceless Seasus-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_PricelessSeasMemberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Priceless Seas74true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]75false 4prgn_VesselCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3720237202falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in Deadweight Tonnage.No definition available.false0DWT76false 4prgn_VesselYearBuiltprgn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002013falsefalsefalsexbrli:stringItemTypestringThe date the vessel was built.No definition available.false0Vessel Year Built77false 4prgn_VesselDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00January 2013falsefalsefalsexbrli:stringItemTypestringThe date the vessel was delivered to the Company.No definition available.false0Delivery Date78false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-05-05falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation79false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse14false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_Hull656Memberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseHull 656us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_Hull656Memberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Hull 65680true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]81false 4prgn_ContainershipCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse48004800falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in twenty-foot equivalent unit (TEU).No definition available.false0TEU82false 4prgn_VesselExpectedDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002014falsefalsefalsexbrli:stringItemTypestringThe date the vessel is expected to be delivered to the Company.No definition available.false0Expected Delivery83false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002009-10-06falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation84false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse15false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_Hull657Memberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseHull 657us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_Hull657Memberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Hull 65785true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]86false 4prgn_ContainershipCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse48004800falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in twenty-foot equivalent unit (TEU).No definition available.false0TEU87false 4prgn_VesselExpectedDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002014falsefalsefalsexbrli:stringItemTypestringThe date the vessel is expected to be delivered to the Company.No definition available.false0Expected Delivery88false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-05-04falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of Incorporation89false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse16false truefalseQ2_2013_Dur_xbrl.sec.gov_dei_2012-01-31_EntityIncorporationDateOfIncorporation_www.prgn.com_20130630_Hull625Memberhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseHull 625us-gaap_PropertyPlantAndEquipmentByTypeAxisxbrldihttp://xbrl.org/2006/xbrldiprgn_Hull625Memberus-gaap_PropertyPlantAndEquipmentByTypeAxisexplicitMemberIntegerStandardhttp://www.xbrl.org/2003/instancepure0nanafalse0Hull 62590true 3us-gaap_PropertyPlantAndEquipmentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Property Plant And Equipment [Line Items]91false 4prgn_ContainershipCapacityprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3720037200falsefalsefalsexbrli:integerItemTypeintegerThe vessels' capacity in twenty-foot equivalent unit (TEU).No definition available.false0TEU92false 4prgn_VesselExpectedDeliveryDateprgn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002013falsefalsefalsexbrli:stringItemTypestringThe date the vessel is expected to be delivered to the Company.No definition available.false0Expected Delivery93false 4dei_EntityIncorporationDateOfIncorporationdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002010-05-05falsefalsetruexbrli:dateItemTypedateDate when an entity was incorporatedNo definition available.false0Date of IncorporationfalseBasis of Presentation and General Information (Table) (Details)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.prgn.com/20130630/role/BasisOfPresentationAndGeneralInformationTableDetails193