XML 74 R64.htm IDEA: XBRL DOCUMENT v3.25.3

Fair Value and Interest Rate Risk - Narrative (Details) - bond	Sep. 30, 2025	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Number of Level 3 instruments	4	4

X

- Definition

Number of Level 3 Instruments

+ References

No definition available.

+ Details

Name:	pnbk_NumberOfLevel3Instruments
Namespace Prefix:	pnbk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration