Name:	prgn_CapitalizedExpensesRelatedParty
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The charter hire commission rate payable to the management company.

No definition available.

Name:	prgn_CharterHireCommissionPercentage
Namespace Prefix:	prgn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Company shares issuable to the management company in the event of agreement termination for the reasons disclosed in the respective agreement.

No definition available.

Name:	prgn_CommonAndOutstandingSharesIssuableToManagementCompany
Namespace Prefix:	prgn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The percentage of the issued and oustanding shares of the company, issuable to the management company.

No definition available.

Name:	prgn_CommonAndOutstandingSharesIssuableToManagementCompanyPercentage
Namespace Prefix:	prgn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Daily fee per vessel payable to the management company for newbuilding supervision services.

No definition available.

Name:	prgn_DailyFeeForNewbuildingSupervisionServices
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The duration of agreements.

No definition available.

Name:	prgn_DurationOfAgreements
Namespace Prefix:	prgn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount paid to the management company for the provision of executive services, including incentive compensation.

No definition available.

Name:	prgn_ExecutiveServicesFeeAmountPaid
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Annual fee payable to the management company for the provision of executive services.

No definition available.

Name:	prgn_ExecutiveServicesFeeAmountPayable
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Annual fee payable to the management company for the provision of financial accounting services.

No definition available.

Name:	prgn_FinancialAccountingServicesFeePayable
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Annual fee per vessel payable to the management company for the provision of financial reporting services.

No definition available.

Name:	prgn_FinancialReportingServicesFeePayablePerVessel
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Flat fee payable to the management company for newbuilding supervision services.

No definition available.

Name:	prgn_FlatFeeForNewbuildingSupervisionServices
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Incentive compensation paid to the management company in relation to the executive services agreement.

No definition available.

Name:	prgn_IncentiveCompensationAmountPaid
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of involuntary termination fees to be compensated to the management company.

No definition available.

Name:	prgn_InvoluntaryContractTerminationFees
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Daily management fee payable to the management company.

No definition available.

Name:	prgn_ManagementFeePayableAmount
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The maximum offering amount of shares under the equity distribution agreement.

No definition available.

Name:	prgn_SaleOfStockMaximumAmountToBeOffered
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents the number of days per calendar year, in excess of which superintended fees are charged.

No definition available.

Name:	prgn_SuperintendentInspectionServicesNumberOfDays
Namespace Prefix:	prgn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Daily superintendents' fee payable to the management company.

No definition available.

Name:	prgn_SuperintendentsFeeAmountPayable
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Lump-sum fee payable to the management company for vessels' pre-delivery services.

No definition available.

Name:	prgn_VesselPreDeliveryServicesLumpSumFee
Namespace Prefix:	prgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Commission rate for the purchase, sale and construction of vessels.

No definition available.

Name:	prgn_VesselTransactionCommissionPercentage
Namespace Prefix:	prgn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The number of years for the computation of the compensation payable to the management company in the event of agreement termination for the reasons disclosed in the respective agreement.

No definition available.

Name:	prgn_YearsForComputationOfCompensationToManagementCompany
Namespace Prefix:	prgn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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 210.5-02.29)
-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 30
-Article 5

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: 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.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Subparagraph 2
-Article 4

Name:	us-gaap_DueFromRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=prgn_AllseasMarineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_AccountingServicesAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_ExecutiveServicesAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_SuperintendentsFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_FinancialAccountingServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_FinancialReportingServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionAxis=prgn_NewbuildingsSupervisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=prgn_LorettoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: