Other Non-interest Revenue and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Noninterest Income, Other [Abstract]
Correspondent banking fees	$ 4	$ 965	$ 147	$ 2,454
Other	86	177	224	267
Total non-interest income	90	1,142	371	2,721
Non-interest expense:
Advertising	104	133	368	412
Legal expense	63	285	246	612
Insurance and surety	293	253	878	631
Audit expense	148	425	448	674
Data lines / internet	105	94	299	307
Security services	85	81	234	187
Retail expenses	224	115	690	602
Loss contingency	0	(770)	0	1,203
Director's fees	24	131	270	273
Other	679	623	1,892	1,843
Total non-interest expense	$ 1,725	$ 1,370	$ 5,325	$ 6,744