Non-interest Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,831	$ 899	$ 6,636	$ 4,555
Noninterest income out of scope of ASU 606
Disaggregation of Revenue [Line Items]
Noninterest income	371	162	2,331	1,625
Noninterest income in scope of ASU 606
Disaggregation of Revenue [Line Items]
Noninterest income	1,460	737	4,305	2,930
Depository fees and charges | Noninterest income in scope of ASU 606
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	432	692	1,628	2,041
Loan fees and service charges | Noninterest income in scope of ASU 606
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	52	27	190	167
Other noninterest income | Noninterest income in scope of ASU 606
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 976	$ 18	$ 2,487	$ 722