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INVESTMENT SECURITIES - Schedule of Maturities of Debt Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Mar. 31, 2023
Debt Securities, Held-to-maturity, Maturity [Abstract]    
Amortized Cost , due within one year $ 3,969 $ 6,243
Estimated Fair Value, due within one year 3,927 6,254
Amortized Cost, Due within years two through five years 29,140 33,379
Estimated Fair Value, Due within years two through five 27,287 31,055
Amortized Cost 33,109 39,622
Estimated Fair Value $ 31,214 $ 37,309