XML 107 R58.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans (USD $) | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Greater Than 90 Days Past Due and Accruing | $ 279,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing | $ 866,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Non-Accrual and Past Due Loans [Member] | Commercial Portfolio Segment [Member] | Pass [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Greater Than 90 Days Past Due and Accruing | 279,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 25,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember
Total Non-Accrual and Past Due Loans | 279,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember | 25,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_PassMember
Non-Accrual and Past Due Loans [Member] | Commercial Portfolio Segment [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Total Past Due | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Current |  | 6,150,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans | 2,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 6,152,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Commercial Portfolio Segment [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Non-Accrual Loans, Total Past Due | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Non-Accrual Loans, Current |  | 6,150,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Greater Than 90 Days Past Due and Accruing | 279,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 25,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Total Non-Accrual and Past Due Loans | 281,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 6,177,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Non-Accrual and Past Due Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days |  | 1,765,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Total Past Due |  | 1,765,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Current | 138,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember |
Greater Than 90 Days Past Due and Accruing |  | 841,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans | 138,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,606,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days |  | 1,765,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Non-Accrual Loans, Total Past Due |  | 1,765,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Non-Accrual Loans, Current | 138,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Greater Than 90 Days Past Due and Accruing |  | 841,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Total Non-Accrual and Past Due Loans | 138,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 2,606,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Non-Accrual and Past Due Loans [Member] | Residential Portfolio Segment [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 719,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,553,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Total Past Due | 719,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,553,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Current |  | 385,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans | 719,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,938,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Residential Portfolio Segment [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 719,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 2,553,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Non-Accrual Loans, Total Past Due | 719,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 2,553,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Non-Accrual Loans, Current |  | 385,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Total Non-Accrual and Past Due Loans | 719,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 2,938,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Non-Accrual and Past Due Loans [Member] | Consumer Portfolio Segment [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 7,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Total Past Due | 7,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Current |  | 31,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans | 7,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 33,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Consumer Portfolio Segment [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 7,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Non-Accrual Loans, Total Past Due | 7,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 2,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Non-Accrual Loans, Current |  | 31,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Total Non-Accrual and Past Due Loans | 7,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 33,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Non-Accrual and Past Due Loans [Member] | Real Estate Construction [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days |  | 260,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual Loans, Total Past Due |  | 260,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans |  | 260,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Real Estate Construction [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days |  | 260,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember
Non-Accrual Loans, Total Past Due |  | 260,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember
Total Non-Accrual and Past Due Loans |  | 260,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionMember
Non-Accrual and Past Due Loans [Member] | Real Estate Construction to Permanent [Member] | Substandard [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Current |  | 1,189,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Total Non-Accrual and Past Due Loans |  | 1,189,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember
Non-Accrual and Past Due Loans [Member] | Real Estate Construction to Permanent [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Current |  | 1,189,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember
Total Non-Accrual and Past Due Loans |  | 1,189,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = pnbk_RealEstateConstructionToPermanentMember
Non-Accrual and Past Due Loans [Member] |  |
Note 4 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Non-Accrual Loans and Past Due Matured Loans [Line Items] |  |
Non-Accrual Loans, Greater Than 90 Days | 728,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember | 4,582,000 us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember
Non-Accrual Loans, Total Past Due | 728,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember | 4,582,000 us-gaap_FinancingReceivableRecordedInvestmentPastDue / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember
Non-Accrual Loans, Current | 138,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember | 7,755,000 us-gaap_FinancingReceivableRecordedInvestmentCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember
Greater Than 90 Days Past Due and Accruing | 279,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember | 866,000 us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember
Total Non-Accrual and Past Due Loans | $ 1,145,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember | $ 13,203,000 pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = pnbk_NonAccrualAndPastDueLoansMember

X
- Definition Financing receivable recorded investment past dues and nonaccrual status. + References No definition available. + Details
Name: | pnbk_FinancingReceivableRecordedInvestmentPastDuesAndNonaccrualStatus
Namespace Prefix: | pnbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | pnbk_Note4LoansReceivableandAllowanceforLoanLossesDetailsDelinquencyStatusofNonAccrualLoansandPastDueMaturedLoansLineItems
Namespace Prefix: | pnbk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivables that are equal to or greater than 90 days past due. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=pnbk_NonAccrualAndPastDueLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |