Organization Organization Text Tag (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2003 USD ($)	Sep. 17, 2003 $ / shares shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
subordinated debt issued shares (in shares) | shares				13,000
Liquidation amount subordinated debt (in dollars per share) | $ / shares				$ 1,000
Proceeds from Issuance of Long-term Debt			$ 13,000
Proceeds from (Payments for) Other Financing Activities			400
Payments for Repurchase of Trust Preferred Securities			$ 13,400
Debt Instrument, Basis Spread on Variable Rate	3.05%
Subordinated Borrowing, Interest Rate	3.23%	3.89%
Accrued interest expense subordinated debt	$ 3,100	$ 2,500
Tier One Leverage Capital IMCR to Average Assets	0.0900	0.0900
Total Risk Based Capital IMCR to Risk Weighted Assets	0.1200	0.1200