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Note 2 - Accounting Policies (Details Textual)	3 Months Ended
	Mar. 31, 2021 USD ($)
Employee Retention Tax Credit Per Employee	$ 843,000

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