Non-interest Revenue and Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Other Income and Expenses [Abstract]
Correspondent banking fees	$ 147	$ 2,574
Other	225	307
Total non-interest income	372	2,881
Advertising	513	572
Legal expense	442	626
Insurance and surety	1,200	927
Audit expense	573	851
Data lines / internet	398	410
Retail expenses	933	820
Director's fees	373	344
Other	2,767	2,659
Other Noninterest Expense	$ 7,199	$ 7,209