v3.26.1
Loans and Allowance for Credit Losses - Additional Information (Details) - USD ($)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Apr. 01, 2024
Financing Receivable, Past Due [Line Items]      
Loans receivable from related parties $ 1,700,000 $ 1,800,000  
Modifications on loans 0 0  
Additional provision for credit losses related to off-balance sheet 0 0  
Loans excludes allowance for off-balance sheet 215,000 215,000  
Nonaccrual status of amortized cost 1,641,000 1,329,000 $ 537,000
Federal Home Loan Mortgage Corp      
Financing Receivable, Past Due [Line Items]      
Loans receivable from related parties $ 861,000 $ 940,000