Investment Securities-Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	$ 347
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	6,929
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	29,947
Available-for-sale, Amortized Cost	74,258	$ 89,682
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	343
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	6,823
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	26,851
Available-for-sale	$ 67,596	86,507
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, Securities, Debt Maturities, within One Year, Weighted Average Rate	1.06%
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Yield	0.00%
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Yield	1.92%
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Yield	1.96%
Available-for-sale Securities, Debt Maturities, Weighted Average Yield	2.19%
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount
Held-to-maturity	$ 5,254	7,807
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Securities held-to-maturity	$ 5,276	$ 8,140

Available-for-sale Securities, Debt Maturities, Weighted Average Rate

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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