Other Non-interest Revenue and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Noninterest Income, Other [Abstract]
Other	$ 157	$ 131	$ 273	$ 225
Total non-interest income	157	131	273	225
Non-interest expense:
Advertising	71	165	154	234
Legal expense	174	247	324	340
Insurance and surety	285	309	576	618
Audit expense	167	165	333	331
Data lines / internet	116	104	213	210
Retail expenses	162	284	457	570
Operating charge-offs and other losses	21	100	46	139
Director's fees	105	106	210	211
Other	606	664	1,296	1,281
Total non-interest expense	$ 1,707	$ 2,144	$ 3,609	$ 3,934