Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Financial Assets:
Held-to-maturity, Fair Value	$ 2,107	$ 2,221
Fair Value, Inputs, Level 1
Financial Assets:
Cash and cash equivalents	41,691	42,552
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	406,245	418,432
Advances from FHLB of New York	0	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	52,192	53,843
Held-to-maturity, Fair Value	2,107	2,221
Loans Receivable	0	0
Accrued interest receivable	1,981	1,911
Mortgage servicing rights	0	0
Financial Liabilities:
Deposits	181,263	176,304
Advances from FHLB of New York	32,349	35,238
Other borrowed money	16,796	14,575
Accrued interest payable	718	380
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	547,028	567,029
Accrued interest receivable	0	0
Mortgage servicing rights	147	152
Financial Liabilities:
Deposits	0	0
Advances from FHLB of New York	0	0
Other borrowed money	0	0
Accrued interest payable	0	0
Reported Value Measurement
Financial Assets:
Cash and cash equivalents	41,691	42,552
Securities Available-for-Sale	52,192	53,843
Held-to-maturity, Fair Value	2,237	2,318
Loans Receivable	584,676	592,667
Accrued interest receivable	1,981	1,911
Financial Liabilities:
Deposits	593,162	600,429
Advances from FHLB of New York	32,500	35,000
Other borrowed money	18,403	15,903
Accrued interest payable	718	380
Estimate of Fair Value Measurement
Financial Assets:
Cash and cash equivalents	41,691	42,552
Securities Available-for-Sale	52,192	53,843
Held-to-maturity, Fair Value	2,107	2,221
Loans Receivable	547,028	567,029
Accrued interest receivable	1,981	1,911
Mortgage servicing rights	147	152
Financial Liabilities:
Deposits	587,508	594,736
Advances from FHLB of New York	32,349	35,238
Other borrowed money	16,796	14,575
Accrued interest payable	$ 718	$ 380