v3.25.3

NET LOANS RECEIVABLE - Nonaccrual and Loans Past Due Over 90 Days Still on Accrual (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Recorded Investment in Nonaccrual
Nonaccrual	$ 11,386	$ 5,246
Nonaccrual Loans With No Related Allowance	5,875	1,541
Past Due 90 Days Still on Accrual	1	1
Commercial \| Real estate
Recorded Investment in Nonaccrual
Nonaccrual	6,185
Nonaccrual Loans With No Related Allowance	5,338
Past Due 90 Days Still on Accrual	1	1
Commercial \| Commercial and industrial
Recorded Investment in Nonaccrual
Nonaccrual	5	10
Residential mortgages
Recorded Investment in Nonaccrual
Nonaccrual	3,811	4,127
Nonaccrual Loans With No Related Allowance	537	1,541
Home equity loans and lines of credit
Recorded Investment in Nonaccrual
Nonaccrual	$ 1,385	$ 1,109

Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=pbfs_HomeEquityLoansAndLinesPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Pioneer Bancorp, Inc./MD 10-Q