FAIR VALUE - Non-Recurring Basis - Other (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Fair Value
Individually evaluated loans	$ 642,000	$ 721,000
Individually Evaluated Loans, Commercial, Valuation Technique [Extensible Enumeration]	pbfs:ValuationTechniqueAppraisalOfCollateralMember	pbfs:ValuationTechniqueAppraisalOfCollateralMember
Individually Evaluated Loans, Commercial, Measurement Input [Extensible Enumeration]	pbfs:MeasurementInputLiquidationExpenseMember	pbfs:MeasurementInputLiquidationExpenseMember
Other real estate owned	$ 80,000
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	0.11	0.11
Other real estate owned measurement input	0.11

The balance of financing receivables that were individually evaluated for impairment, less allowance.

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Value of input used to measure impaired loans commercial.

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Indicates measurement input for individually evaluated loans, commercial.

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Indicates valuation technique for individually evaluated loans, commercial.

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- Definition

The fair value of other real estate owned.

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- 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.

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

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