Consolidated Statements of Financial Condition Parentheticals - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Investment securities:
Securities held-to-maturity	$ 2,221	$ 5,276
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)	6,799,410	6,720,618
Common Stock, Shares Outstanding (in shares)	4,295,607	4,216,815
Treasury Stock, Common, Shares	2,503,803	2,503,803
Series D Preferred Stock
Preferred Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Issued (in shares)	13,201	13,751
Preferred Stock, Shares Outstanding (in shares)	13,201	13,751
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	$ 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	$ 1,000
Series F Preferred Stock
Preferred Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Issued (in shares)	9,000
Preferred Stock, Shares Outstanding (in shares)		9,000
Preferred Stock, Liquidation Preference (in dollars per share)	$ 1,000	$ 1,000