Consolidated Statement of Stockholders' Equity and Convertible Preferred Stock (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock, Common and Preferred [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Series A Convertible Preferred Stock [Member]	Series B Convertible Preferred Stock [Member]	Series C Convertible Preferred Stock [Member]	Total
Balance (in shares) at Dec. 31, 2021	120,838	346
Balance at Dec. 31, 2021	$ 12	$ (1,315)	$ 191,264	$ (170,069)	$ 63,791	$ 64,602	$ 40,007	$ 19,892
Share-based compensation			(2,372)					(2,372)
Restricted stock vesting (in shares)	911
Shares repurchased related to share-based compensation (in shares)	(195)	195
Shares repurchased related to share-based compensation		$ (464)						(464)
Issuance of common stock, net							9,806
Preferred stock dividends			(5,754)		2,225	2,123	1,387	(5,754)
Net loss				(11,437)				(11,437)
Balance (in shares) at Mar. 31, 2022	121,554	541
Balance at Mar. 31, 2022	$ 12	$ (1,779)	183,138	(181,506)	66,016	66,725	51,200	(135)
Balance (in shares) at Dec. 31, 2022	143,549	991
Balance at Dec. 31, 2022	$ 14	$ (4,587)	289,084	(230,140)	73,026	73,408	56,009	54,371
Share-based compensation			1,559					1,559
Restricted stock vesting (in shares)	56
Shares repurchased related to share-based compensation (in shares)	(9)	9
Shares repurchased related to share-based compensation		$ (47)						(47)
Issuance of common stock, net (in shares)	5,835
Issuance of common stock, net			34,999					35,000
Preferred stock dividends			(6,700)		2,506	2,390	1,790	(6,700)
Net loss				(27,347)				(27,347)
Balance (in shares) at Mar. 31, 2023	149,431	1,000
Balance at Mar. 31, 2023	$ 15	$ (4,634)	$ 318,942	$ (257,487)	$ 75,532	$ 75,798	$ 57,799	$ 56,836