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Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans (USD $) | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014
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Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | $ 499,359,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | $ 476,908,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | $ 420,603,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Real Estate Construction [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 7,024,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 3,096,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 7,024,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 3,096,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 7,024,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 3,096,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Real Estate Construction to Permanent [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 9,988,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 10,627,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 9,988,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 10,627,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 9,988,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 10,627,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 40,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,520,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 40,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember | 1,520,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember |
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 279,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 279,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember |
Commercial Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 40,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,799,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Current | 46,732,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 46,279,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 46,772,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 48,078,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 46,772,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 48,078,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Commercial Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Special Mention [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 113,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 121,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loan Balances | 113,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 121,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loans Receivable | 113,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 121,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Commercial Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 5,591,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 5,772,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loan Balances | 5,591,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 5,772,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Non-Accrual and Past Due Loans |  | 2,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loans Receivable | 5,591,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 5,774,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Commercial Portfolio Segment [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 40,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 1,799,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember |
Current | 52,436,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 52,172,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember |
Total Loan Balances | 52,476,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 53,971,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember |
Total Non-Accrual and Past Due Loans |  | 2,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember |
Total Loans Receivable | 52,476,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 53,973,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember |
Commercial Portfolio Segment [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 52,476,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 53,973,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember | 38,838,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialPortfolioSegmentMember
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Special Mention [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 1,041,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember | 1,041,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 815,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 815,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember |
Commercial Real Estate Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 271,956,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 248,132,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 271,956,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 248,132,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 271,956,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 248,132,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Commercial Real Estate Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Special Mention [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 1,041,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Current | 5,986,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 2,887,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loan Balances | 7,018,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 3,928,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loans Receivable | 7,018,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 3,928,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Commercial Real Estate Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 815,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Current | 2,278,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 1,492,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loan Balances | 2,278,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,307,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Non-Accrual and Past Due Loans | 135,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 138,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loans Receivable | 2,413,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,445,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Commercial Real Estate Portfolio Segment [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 1,856,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Current | 280,220,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 252,511,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Total Loan Balances | 281,252,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 254,367,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Total Non-Accrual and Past Due Loans | 135,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 138,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Total Loans Receivable | 281,387,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 254,505,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Commercial Real Estate Portfolio Segment [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 281,387,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 254,505,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 217,674,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Real Estate Construction [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 7,024,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember | 3,096,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember |
Total Loan Balances | 7,024,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember | 3,096,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember |
Total Loans Receivable | 7,024,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember | 3,096,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember |
Real Estate Construction [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 7,024,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember | 3,096,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember | 260,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_RealEstateConstructionMember
Construction to Permanent [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Current | 9,988,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember | 10,627,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember |
Total Loan Balances | 9,988,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember | 10,627,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember |
Total Loans Receivable | 9,988,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember | 10,627,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember |
Construction to Permanent [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 9,988,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember | 10,627,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember | 12,718,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = pnbk_ConstructionToPermanentMember
Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 30,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 172,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 30,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember | 172,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember |
Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 178,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 87,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 178,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember | 87,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember |
Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,537,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,553,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,537,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember | 1,553,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember |
Residential Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,745,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,812,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Current | 100,396,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 106,012,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 102,141,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 107,824,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 102,141,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 107,824,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Residential Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Non-Accrual and Past Due Loans | 380,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 719,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loans Receivable | 380,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 719,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Residential Portfolio Segment [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,745,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 1,812,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember |
Current | 100,396,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 106,012,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember |
Total Loan Balances | 102,141,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 107,824,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember |
Total Non-Accrual and Past Due Loans | 380,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 719,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember |
Total Loans Receivable | 102,521,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 108,543,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember |
Residential Portfolio Segment [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 102,521,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 108,543,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember | 103,766,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ResidentialPortfolioSegmentMember
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 4,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |  |
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 4,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember |  |
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 99,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 99,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember |
Consumer Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 103,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Current | 45,860,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 46,155,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 45,963,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 46,157,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 45,963,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 46,157,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Consumer Portfolio Segment [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Non-Accrual and Past Due Loans |  | 7,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loans Receivable |  | 7,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Consumer Portfolio Segment [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 103,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember |
Current | 45,860,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 46,155,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember |
Total Loan Balances | 45,963,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 46,157,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember |
Total Non-Accrual and Past Due Loans |  | 7,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember |
Total Loans Receivable | 45,963,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 46,164,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember |
Consumer Portfolio Segment [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Loans Receivable | 45,963,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 46,164,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember | 47,347,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_FinancingReceivablePortfolioSegmentAxis = us-gaap_ConsumerPortfolioSegmentMember
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 74,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,692,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] | Special Mention [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 1,041,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Financing Receivables, 30 to 59 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,106,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember | 2,733,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables30To59DaysPastDueMember |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 277,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 89,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 815,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Financing Receivables, 60 to 89 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 277,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember | 904,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivables60To89DaysPastDueMember |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,537,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 1,832,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,537,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember | 1,832,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_FinancingReceivablesPeriodPastDueAxis = us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember |
Performing and Accruing Loans [Member] | Pass [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,888,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 3,613,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Current | 481,956,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 460,301,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loan Balances | 483,844,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 463,914,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Total Loans Receivable | 483,844,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 463,914,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember |
Performing and Accruing Loans [Member] | Special Mention [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 1,032,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 1,041,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Current | 6,099,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 3,008,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loan Balances | 7,131,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 4,049,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Total Loans Receivable | 7,131,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 4,049,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember |
Performing and Accruing Loans [Member] | Substandard [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due |  | 815,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Current | 7,869,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 7,264,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loan Balances | 7,869,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 8,079,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Non-Accrual and Past Due Loans | 515,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 866,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Total Loans Receivable | 8,384,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 8,945,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Performing and Accruing Loans [Member] |  |  |
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items] |  |  |
Total Past due | 2,920,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember | 5,469,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember |
Current | 495,924,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember | 470,573,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember |
Total Loan Balances | 498,844,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember | 476,042,000 pnbk_PerformingLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember |
Total Non-Accrual and Past Due Loans | 515,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember | 866,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember |
Total Loans Receivable | $ 499,359,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember | $ 476,908,000 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_PerformingAndAccruingLoansMember |

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