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Note 2 - Accounting Policies (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2020
Employee Retention Tax Credit Per Employee | $ 1,100 | $ 1,991 | $ (0)

X
- Definition Amount of refundable payroll tax credit provided under the Coronavirus Aid, Relief, and Economic Security (CARES) Act. + References No definition available. + Details
Name: | pnbk_EmployeeRetentionTaxCredit
Namespace Prefix: | pnbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration