Consolidated Statements of Financial Condition Parentheticals - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Investment securities:
Debt Securities, Held-to-maturity, Fair Value	$ 8,140	$ 10,564
Common Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	10,000,000	10,000,000
Common Stock, Shares Issued (in shares)	5,837,071	3,701,449
Common Stock, Shares Outstanding (in shares)	3,333,268	3,699,505
Treasury Stock, Shares (in shares)	2,503,803	1,944
Series D Preferred Stock
Preferred Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Issued (in shares)	17,601	45,118
Preferred Stock, Shares Outstanding (in shares)	17,601	45,118
Preferred Stock, Liquidation Preference (in dollars per share)	$ 1,000	$ 1,000
Series E Preferred Stock
Preferred Stock, Par Value (in dollars per share)	$ 0.01
Preferred Stock, Shares Issued (in shares)	3,177
Preferred Stock, Shares Outstanding (in shares)	3,177
Preferred Stock, Liquidation Preference (in dollars per share)	$ 1,000
Series F Preferred Stock
Preferred Stock, Par Value (in dollars per share)	$ 0.01
Preferred Stock, Shares Issued (in shares)	5,000
Preferred Stock, Shares Outstanding (in shares)	5,000
Preferred Stock, Liquidation Preference (in dollars per share)	$ 1,000