v3.26.1
Fair Value of Financial Instruments - Quantitative Information on Assed Value, Non Recurring (Details)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Other real estate owned $ 5,519,000 $ 0
Significant Unobservable Inputs (Level 3)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net loans receivable 17,386,000  
Other real estate owned $ 5,519,000 0
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]    
Other real estate owned, measurement input 0.0400  
Other real estate owned $ 5,519,000  
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]    
Other real estate owned, measurement input 0.0400  
Market Valuation of Underlying Collateral | 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]    
Net loans receivable $ 17,386,000 16,385,000
Market Valuation of Underlying Collateral | 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]    
Net loans receivable   $ 4,697,000
Market Valuation of Underlying Collateral | 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 0.0600 0.0600
Market Valuation of Underlying Collateral | 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 0.2100 0.2400
Market Valuation of Underlying Collateral | 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   0.0944
Market Valuation of Underlying Collateral | 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 0.1354 0.1508
Market Valuation of Underlying Collateral | 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   0.0944