2.4.0.8400710 - Disclosure - Investment in Affiliate (Table) (Details)truefalsefalse1false USDfalsefalse$Q2_2013_Durhttp://www.sec.gov/CIK0001401112duration2013-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$Q2_2012_Durhttp://www.sec.gov/CIK0001401112duration2012-01-01T00:00:002012-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 1us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Investment in Affiliate [Abstract]2false 2us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesus-gaap_truedebitinstantfalsefalsefalsefalsefalsetruefalsefalseperiodStartLabel1truefalsefalse1998774319987743USD$falsetruefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryTotal investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.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 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Balance, December 31, 20123false 2prgn_ShareOfEarningsLossesOfAffiliateprgn_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse978702978702falsefalsefalse2truefalsefalse13565011356501falsefalsefalsexbrli:monetaryItemTypemonetaryThe share of earnings / (losses) of affiliate.No definition available.false2Equity in net income of affiliate4false 2prgn_EquityInOtherComprehensiveIncomeLossOfAffiliateprgn_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse106709106709falsefalsefalse2truefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe share of other comprehensive income / (loss) of affiliate.No definition available.false2Equity in other comprehensive income of affiliate5false 2prgn_DividendsReceivedFromAffiliateprgn_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1truefalsefalse-1168750-1168750falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of dividends received from an affiliate.No definition available.false2Dividends received6false 2prgn_DilutionEffectprgn_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-390821-390821falsefalsefalse2truefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe dilution effect from the non participation in public offerings of affiliates.No definition available.false2Loss on investment in affiliate7false 2us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse1951358319513583USD$falsetruefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryTotal investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.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 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Balance, June 30, 2013falseInvestment in Affiliate (Table) (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.prgn.com/20130630/role/InvestmentInEquityAffiliateTableDetails27