Other Non-interest Revenue and Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Noninterest Income, Other [Abstract]
Correspondent banking fees	$ 0	$ 0
Other	94	35
Total non-interest income	94	35
Non-interest expense:
Advertising	69	153
Legal expense	93	71
Insurance and surety	309	296
Audit expense	166	151
Data lines / internet	106	96
Security services	19	74
Retail expenses	286	216
Director's fees	105	123
Other	637	578
Total non-interest expense	$ 1,790	$ 1,758