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Fair Value of Financial Instruments - Quantitative Information on Assed Value, Non Recurring (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	$ 12,956	$ 178
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	17,721
Other real estate owned	12,956	178
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value		21,031
Residential mortgage | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	449	2,035
Residential mortgage | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	449	2,035
Measurement Input, Cost to Sell | Residential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	$ 449	2,035
Other real estate owned		$ 178
Collateral dependent loans, measurement input	0.0693
Other real estate owned, measurement input		0.0600
Measurement Input, Cost to Sell | Commercial business | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned, measurement input	0.0400
Measurement Input, Cost to Sell | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	$ 7,300	$ 7,517
Measurement Input, Cost to Sell | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	9,972	$ 11,479
Other real estate owned	$ 12,956
Minimum | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.10
Minimum | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.09
Minimum | Measurement Input, Cost to Sell | Residential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.07
Minimum | Measurement Input, Cost to Sell | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.06
Minimum | Measurement Input, Cost to Sell | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.09
Maximum | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.12
Maximum | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.18
Maximum | Measurement Input, Cost to Sell | Residential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.10
Maximum | Measurement Input, Cost to Sell | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input		0.09
Maximum | Measurement Input, Cost to Sell | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.16
Weighted Average | Measurement Input, Cost to Sell | Residential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.0693	0.0897
Other real estate owned, measurement input		0.0600
Weighted Average | Measurement Input, Cost to Sell | Commercial business | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned, measurement input	0.0400
Weighted Average | Measurement Input, Cost to Sell | Commercial business | Multi-family mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.0778	0.1106
Weighted Average | Measurement Input, Cost to Sell | Commercial business | Nonresidential mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, measurement input	0.1178	0.1272

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-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
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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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