Stockholders' Equity Text Tag (Details) $ / shares in Units, $ in Thousands	3 Months Ended					9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2020 shares	Jun. 30, 2020 shares	Dec. 31, 1994 USD ($)	Dec. 31, 2011 shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Feb. 16, 2021 $ / shares	Feb. 01, 2021 $ / shares	Oct. 15, 2020 $ / shares	Oct. 27, 2011 shares	Aug. 06, 2002 shares	Oct. 24, 1994 $ / shares shares
Stockholders' Equity Note [Abstract]
Common Stock, Shares Issued (in shares)							6,799,410	6,720,618							2,314,375
Common Stock, Par Value (in dollars per share) | $ / shares							$ 0.01	$ 0.01							$ 0.01
Share Price (in dollars per share) | $ / shares															$ 10
Proceeds from Issuance of Common Stock | $					$ 21,500		$ 0	$ 2,998
Stockholders' Equity, Reverse Stock Split						1-for-15
Common Stock, Shares Outstanding (in shares)							4,295,607	4,216,815					2,492,415
Stock Issued During Period, Shares, Reverse Stock Splits (in shares)						166,161
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)														15,442
Treasury Stock, Shares, Acquired									2,321,286
Payments for Repurchase of Equity | $									$ 2,500
Proceeds from Other Equity | $									2,500
Conversion of Stock, Shares Converted		475		13,519			550	3,850
Conversion of Stock, Shares Issued		58,093		1,653,397			67,265	470,855
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues								397,367
Proceeds from Issuance of Private Placement | $	$ 4,000	$ 4,400							$ 6,000
Conversion of Stock, Shares Converted		475		13,519			550	3,850
Conversion of Stock, Shares Issued		58,093		1,653,397			67,265	470,855
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
Tier One Leverage Capital to Average Assets							0.1061	0.1045
Common Equity Tier One Capital to Risk Weighted Assets							12.47%	13.75%
Tier One Risk Based Capital to Risk Weighted Assets							0.1247	0.1375
Total Risk Based Capital to Risk Weighted Assets							0.1337	0.1478
Common Stock
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares									180,573
Stock Issued During Period, Shares, New Issues		157,806	147,227						112,612
Sale of Stock, Price Per Share | $ / shares										$ 8.88	$ 7.75	$ 6.62
Series E Preferred Stock
Stockholders' Equity Note [Abstract]
Preferred Stock, Shares Outstanding (in shares)								3,177
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues		3,177
Sale of Stock, Price Per Share | $ / shares											$ 1,000
Series F Preferred Stock
Stockholders' Equity Note [Abstract]
Preferred Stock, Shares Outstanding (in shares)								9,000
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	4,000	5,000
Sale of Stock, Price Per Share | $ / shares	$ 1,000									$ 1,000
Series D Preferred Stock
Stockholders' Equity Note [Abstract]
Preferred Stock, Shares Outstanding (in shares)							13,201	13,751
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares									13,523