Non-interest Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 767	$ 837	$ 1,453	$ 1,518
Revenue Not from Contract with Customer	696	262	765	290
Noninterest income	1,463	1,099	2,218	1,808
Depository fees and charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	558	553	1,135	1,108
Loan fees and service charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	123	132	173	248
Other noninterest income
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 86	$ 152	$ 145	$ 162