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Investment Securities-Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	$ 1,850
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	4,684
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	22,647
Available-for-sale, Amortized Cost	60,735	$ 66,058
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	1,838
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	3,961
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	17,514
Available-for-sale	$ 48,030	53,843
Available-for-sale, Maturity, Weighted Average Yield
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Yield	6.50%
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Yield	2.44%
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Yield	3.37%
Available-for-sale Securities, Debt Maturities, Weighted Average Yield	2.54%
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount
Held-to-maturity	$ 2,008	2,318
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Securities held-to-maturity	$ 1,905	$ 2,221

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