Common Stock Dividends and Issuances Text Tags (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2011	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Jul. 19, 2023	Sep. 27, 2021	Feb. 16, 2021	Feb. 01, 2021	Oct. 15, 2020	Oct. 28, 2011
Dividends [Abstract]
Stock Issued During Period, Shares, Other									2,321,286
Conversion of Stock, Shares Converted				475		13,519	2,200		1,208,039	550	3,850
Convertible Preferred Stock, Shares Outstanding (in shares)																		45,118
Conversion of Stock, Shares Issued				58,093		1,653,397	269,060			67,265	470,855
Treasury Stock, Shares, Acquired												2,321,286
Payments for Repurchase of Equity												$ 2,500
Stock Issued During Period, Shares, New Issues		397,367
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues		397,367
Proceeds from Issuance of Private Placement	$ 1,000		$ 4,000	$ 4,400								$ 6,000
Conversion of Stock, Shares Converted				475		13,519	2,200		1,208,039	550	3,850
Issuance of common stock							$ 1,000	$ 0			$ 3,000
Common Stock
Dividends [Abstract]
Stock Issued During Period, Shares, New Issues	378,788			157,806	147,227							112,612
Sale of Stock, Price Per Share													$ 2.64		$ 8.88	$ 7.75	$ 6.62
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares												180,573
Stock Issued During Period, Shares, New Issues	378,788			157,806	147,227							112,612
Sale of Stock, Price Per Share													$ 2.64		8.88	7.75	$ 6.62
Series F Preferred Stock
Dividends [Abstract]
Convertible Preferred Stock, Shares Outstanding (in shares)	9,000						9,000			9,000
Stock Issued During Period, Shares, New Issues			4,000	5,000
Sale of Stock, Price Per Share														$ 1,000	1,000
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues			4,000	5,000
Sale of Stock, Price Per Share														$ 1,000	$ 1,000
Series D Preferred Stock
Dividends [Abstract]
Convertible Preferred Stock, Shares Outstanding (in shares)	11,001						11,001			13,201
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares												13,523
Series E Preferred Stock
Dividends [Abstract]
Convertible Preferred Stock, Shares Outstanding (in shares)	3,177						3,177			3,177
Stock Issued During Period, Shares, New Issues				3,177
Sale of Stock, Price Per Share																1,000
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues				3,177
Sale of Stock, Price Per Share																$ 1,000