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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (unaudited) - shares	3 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited)
ESOP shares committed to be released (in shares)	12,729	12,729	12,729	12,729

X

- Definition

The number of shares committed to be released under an Employee Stock Ownership Plan (ESOP).

+ References

No definition available.

+ Details

Name:	pbfs_EmployeeStockOwnershipPlanSharesCommittedToBeReleased
Namespace Prefix:	pbfs_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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