Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Financial Assets:
Held-to-maturity, Fair Value	$ 2,361	$ 5,276
Fair Value, Inputs, Level 1
Financial Assets:
Cash and cash equivalents	95,545	61,018
Securities Available-for-Sale	0	0
Held-to-maturity, Fair Value	0	0
Loans Receivable	0	0
Accrued interest receivable	0	0
Mortgage servicing rights	0	0
Financial Liabilities:
Deposits	479,086	485,884
Advances from FHLB of New York	0
Other borrowed money	0	0
Accrued interest payable	0	0
Fair Value, Inputs, Level 2
Financial Assets:
Cash and cash equivalents	0	0
Securities Available-for-Sale	55,041	67,596
Held-to-maturity, Fair Value	2,361	5,276
Loans Receivable	0	0
Accrued interest receivable	1,844	2,414
Mortgage servicing rights	0	0
Financial Liabilities:
Deposits	141,307	138,276
Advances from FHLB of New York	39,976
Other borrowed money	14,546	15,673
Accrued interest payable	353	91
Fair Value, Inputs, Level 3
Financial Assets:
Cash and cash equivalents	0	0
Securities Available-for-Sale	0	0
Held-to-maturity, Fair Value	0	0
Loans Receivable	533,604	563,821
Accrued interest receivable	0	0
Mortgage servicing rights	157	162
Financial Liabilities:
Deposits	0	0
Advances from FHLB of New York	0
Other borrowed money	0	0
Accrued interest payable	0	0
Reported Value Measurement
Financial Assets:
Cash and cash equivalents	95,545	61,018
Securities Available-for-Sale	55,041	67,596
Held-to-maturity, Fair Value	2,511	5,254
Loans Receivable	568,900	573,880
Accrued interest receivable	1,844	2,414
Financial Liabilities:
Deposits	626,370	628,117
Advances from FHLB of New York	40,000
Other borrowed money	15,903	15,906
Accrued interest payable	353	91
Estimate of Fair Value Measurement
Financial Assets:
Cash and cash equivalents	95,545	61,018
Securities Available-for-Sale	55,041	67,596
Held-to-maturity, Fair Value	2,361	5,276
Loans Receivable	533,604	563,821
Accrued interest receivable	1,844	2,414
Mortgage servicing rights	157	162
Financial Liabilities:
Deposits	620,393	624,160
Advances from FHLB of New York	39,976
Other borrowed money	14,546	15,673
Accrued interest payable	$ 353	$ 91