Note 7 - Deposits (Details Textual) - USD ($) $ in Millions	Jul. 22, 2020	Jun. 30, 2021	Dec. 31, 2020
Payments to Acquire Prepaid Debit Card Deposits	$ 50.0
Prepaid Debit Card Deposits		$ 137.8	$ 59.3

he cash outflow associated with the purchase of prepaid debit card deposits.

No definition available.

Name:	pnbk_PaymentsToAcquirePrepaidDebitCardDeposits
Namespace Prefix:	pnbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration