FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Assets Measured At Fair Value on a Non-recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	$ 18,940	$ 21,031
Other real estate owned	13,410	178
Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	18,940	21,031
Other real estate owned	13,410	178
Fair Value, Measurements, Nonrecurring | Residential
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	449	2,035
Other real estate owned	454	178
Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	7,529	7,517
Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	10,962	11,479
Other real estate owned	12,956
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring | Residential
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring | Residential
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	0	0
Other real estate owned	0
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	13,400	178
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	18,940	21,031
Other real estate owned	13,410	178
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring | Residential
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	449	2,035
Other real estate owned	454	178
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Multi-family mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	7,529	7,517
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring | Commercial Portfolio Segment | Nonresidential mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans:	10,962	$ 11,479
Other real estate owned	$ 12,956