NATURE OF OPERATIONS - Other (Details)	12 Months Ended
Jun. 30, 2022 Office
NATURE OF OPERATIONS
Number of offices in Capital Region of New York	22

Represents the number of offices in Capital Region of New York.

No definition available.

Name:	pbfs_NumberOfOfficesInCapitalRegion
Namespace Prefix:	pbfs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration