Consolidated Statements of Financial Condition Consolidated Statements of Financial Condition Parentheticals - USD ($) $ in Thousands		Dec. 31, 2017	Mar. 31, 2017
Statement of Financial Position [Abstract]
Held-to-maturity, Fair Value	[1]	$ 12,416	$ 13,497
Series D Convertible Preferred Stock, Par Value (in dollars per share)		$ 0.01	$ 0.01
Series D Convertible Preferred Stock, Shares Issued (in shares)		45,118	45,118
Series D Convertible Preferred Stock, Shares Outstanding (in shares)		45,118	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)		3,698,031	3,698,031
Common Stock, Shares Outstanding (in shares)		3,696,087	3,696,087
Treasury Stock		1,944	1,944

[1] * The carrying amount and amortized cost are the same for all held-to-maturity securities, as no OTTI has been recorded.