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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Significant Accounting Policies [Line Items]      
Cash exceeded federally insured limits $ 226,900    
Cash held, not federally insured 218,800    
Income recognized on joint ventures $ 189 $ 224 $ 172
Tax benefit greater than being realized on examination 50.00%    
Collateral pledged for advances $ 365,729 $ 393,918  
Anti-dilutive securities 0 0 0
Loan outstanding balance $ 1,331 $ 1,909  
Interest-bearing deposits in other financial institutions 100 100  
Allowance for credit losses on investment securities $ 0 0  
Minimum [Member] | Buildings And Related Components [Member]      
Significant Accounting Policies [Line Items]      
Estimated useful life 3 years    
Minimum [Member] | Furniture, fixtures and equipment [Member]      
Significant Accounting Policies [Line Items]      
Estimated useful life 2 years    
Maximum [Member]      
Significant Accounting Policies [Line Items]      
Home equity lines of credit combined with the balance of the prior mortgage liens 89.90%    
Maturity of cash, deposits with other financial institutions 90 days    
Maximum [Member] | Buildings And Related Components [Member]      
Significant Accounting Policies [Line Items]      
Estimated useful life 40 years    
Maximum [Member] | Furniture, fixtures and equipment [Member]      
Significant Accounting Policies [Line Items]      
Estimated useful life 25 years    
Single-Family Residential [Member]      
Significant Accounting Policies [Line Items]      
Collateral pledged for advances $ 294,000 305,283  
Single-Family Residential [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Lending amount up to the percentage of collateral 80.00%    
Multi-Family Residential [Member]      
Significant Accounting Policies [Line Items]      
Collateral pledged for advances $ 54,950 63,024  
Multi-Family Residential [Member] | Minimum [Member]      
Significant Accounting Policies [Line Items]      
Fixed rates loans limit, period 3 years    
Multi-Family Residential [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Lending amount up to the percentage of collateral 85.00%    
Fixed rates loans limit, period 5 years    
Construction [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Lending amount up to the percentage of collateral 80.00%    
Maturity of construction loans convert to permanent loans 30 years    
Home Equity Lines Of Credit [Member]      
Significant Accounting Policies [Line Items]      
Collateral pledged for advances $ 3,505 4,057  
Commercial Real Estate [Member]      
Significant Accounting Policies [Line Items]      
Fixed rates loans limit, period 3 years    
Collateral pledged for advances $ 9,974 17,757  
Commercial Real Estate [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Lending amount up to the percentage of collateral 85.00%    
Fixed rates loans limit, period 5 years    
Cash [Member]      
Significant Accounting Policies [Line Items]      
Collateral pledged for advances $ 3,300 $ 3,300