Consolidated Statements of Financial Condition Consolidated Statements of Financial Condition Parentheticals - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Statement of Financial Position [Abstract]
Held-to-maturity, Fair Value	$ 9,551	$ 10,564
Series D Convertible Preferred Stock, Par Value (in dollars per share)	$ 0.01	$ 0.01
Series D Convertible Preferred Stock, Shares Issued (in shares)	18,076	45,118
Series D Convertible Preferred Stock, Shares Outstanding (in shares)	18,076	45,118
Series D Convertible Preferred Stock, Liquidation Preference (in dollars per share)	$ 1,000	$ 1,000
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)	5,508,560	3,701,449
Common Stock, Shares Outstanding (in shares)	3,004,757	3,699,505
Treasury Stock	2,503,803	1,944