FAIR VALUE - Non-Recurring Basis - Other (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Fair Value
Impaired loans, Commercial	$ 559	$ 2,675
Other real estate owned		$ 365
Impaired Loans, Commercial, Valuation Technique [Extensible Enumeration]	pbfs:ValuationTechniqueAppraisalOfCollateralMember	pbfs:ValuationTechniqueAppraisalOfCollateralMember
Impaired Loans, Commercial, Measurement Input [Extensible Enumeration]	pbfs:MeasurementInputLiquidationExpenseMember	pbfs:MeasurementInputLiquidationExpenseMember
Other Real Estate Owned, Valuation Technique [Extensible Enumeration]		pbfs:ValuationTechniqueAppraisalOfCollateralMember
Other Real Estate Owned, Measurement Input [Extensible Enumeration]		pbfs:MeasurementInputLiquidationExpenseMember
Weighted Average
Fair Value
Impaired commercial loan measurement inputs	0.110	0.110
Other real estate owned measurement input		0.100

Value of input used to measure impaired loans commercial.

No definition available.

Name:	pbfs_ImpairedCommercialLoansMeasurementInput
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Balance Type:	na
Period Type:	instant

- Definition

The fair value of impaired loans related to commercial loans.

+ References

No definition available.

+ Details

Name:	pbfs_ImpairedLoansCommercial
Namespace Prefix:	pbfs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Indicates measurement input for impaired loans, commercial.

+ References

No definition available.

+ Details

Name:	pbfs_ImpairedLoansCommercialMeasurementInputExtensibleEnumeration
Namespace Prefix:	pbfs_
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- Definition

Indicates valuation technique for impaired loans, commercial.

+ References

No definition available.

+ Details

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Namespace Prefix:	pbfs_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
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- Definition

The fair value of other real estate owned.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates measurement input for real estate owned by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates valuation technique for measuring real estate owned by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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Period Type:	instant

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