Deposits-Liabilities by Type (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Deposits, by Type
Non-interest-bearing demand	$ 109,401	$ 107,472
Interest-bearing checking	49,473	57,985
Non-interest bearing checking	109,210	112,305
Money market	150,348	208,122
Certificates of deposit	178,694	139,255
Mortgagors deposits	3,303	2,978
Total deposits	$ 600,429	$ 628,117
Percentage of Interest-bearing Domestic Deposit Liabilities to Deposit Liabilities
Percentage of Noninterest bearing demand deposits to deposits	18.22%	17.11%
Percentage of Interest-bearing Domestic Deposits to Deposits, Checking	8.24%	9.23%
Percentage of Interest-bearing Domestic Deposits to Deposits, Savings	18.19%	17.88%
Percentage of Interest-bearing Domestic Deposits to Deposits, Money Market	25.04%	33.14%
Percentage of Interest-bearing Domestic Deposits to Deposits, Certiificates of Deposits	29.76%	22.17%
Percentage of Interest-bearing Domestic Deposits to Deposits, Mortgagors deposits	0.55%	0.47%
Percent Total Deposits	100.00%	100.00%
Weighted Average Rate Domestic Deposit Liabilities
Weighted Average Rate Domestic Deposit, Demand	0.00%	0.00%
Weighted Average Rate Domestic Deposit, Checking	0.39%	0.06%
Weighted Average Rate Domestic Deposit, Savings	0.60%	0.11%
Weighted Average Rate Domestic Deposit, Money Market	3.73%	0.24%
Weighted Average Rate Domestic Deposit, Certificates of Deposits	5.03%	0.88%
Weighted Average Rate Domestic Deposit, Mortgagors Deposits	0.45%	0.36%
Weighted Average Rate, Interest-bearing Domestic Deposits, Point in Time	2.58%	0.30%