v3.26.1
Fair Value of Financial Instruments - Additional Information (Details) - USD ($)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investment securities - available for sale $ 62,534,000 $ 59,369,000
Fair value assets and liabilities transfer amount 0  
Fair Value, Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investment securities - available for sale 62,500,000 59,400,000
Assets or liabilities measured at fair value $ 0 $ 0