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FAIR VALUE OF FINANCIAL INSTRUMENTS - Quantitative Information on Assed Value, Non Recurring (Details) - Significant Unobservable Inputs (Level 3)	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Net loans receivable	$ 21,025,000	$ 21,082,000
Other real estate owned	0
Market valuation of underlying collateral | Measurement Input, Cost to Sell | Commercial | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Net loans receivable	16,328,000	16,385,000
Market valuation of underlying collateral | Measurement Input, Cost to Sell | Commercial | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Net loans receivable	$ 4,697,000	$ 4,697,000
Collateral dependent loans, measurement input	0.0944	0.0944
Market valuation of underlying collateral | Minimum | Measurement Input, Cost to Sell | Commercial | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.0600	0.0600
Market valuation of underlying collateral | Maximum | Measurement Input, Cost to Sell | Commercial | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.2300	0.2400
Market valuation of underlying collateral | Weighted Average | Measurement Input, Cost to Sell | Commercial | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.1392	0.1508
Market valuation of underlying collateral | Weighted Average | Measurement Input, Cost to Sell | Commercial | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.0944	0.0944

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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