Consolidated Statements of Shareholders' Equity Statement - USD ($) $ in Thousands	Total	Shareholders' Equity Attributable to Common Shareholders	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Noncontrolling Interests in Consolidated Subsidiaries
Balance, beginning of period (in shares) at Dec. 31, 2017			21,708,190
Balance, beginning of period at Dec. 31, 2017	$ 50,727	$ 41,366	$ 0	$ 356,171	$ (310,953)	$ (3,852)	$ 9,361
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(15,875)	(16,592)			(16,592)		717
Contributions from noncontrolling interest holders	680						680
Preferred stock dividends	(777)	(777)		(777)
Other comprehensive (loss) income	516	523				523	(7)
Stock-based compensation	(1,880)	(1,880)		(1,880)
Balance, end of period (in shares) at Sep. 30, 2018			21,708,190.00
Balance, end of period at Sep. 30, 2018	32,737	21,993	$ 0	353,514	(368,687)	37,166	10,744
Balance, beginning of period (in shares) at Jun. 30, 2018			21,708,190
Balance, beginning of period at Jun. 30, 2018	37,956	27,667	$ 0	356,247	(365,126)	36,546	10,289
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(3,361)	(3,561)			(3,561)		200
Contributions from noncontrolling interest holders	255						255
Preferred stock dividends	(265)	(265)		(265)
Other comprehensive (loss) income	620	620				620
Stock-based compensation	(2,468)	(2,468)		(2,468)
Balance, end of period (in shares) at Sep. 30, 2018			21,708,190.00
Balance, end of period at Sep. 30, 2018	$ 32,737	21,993	$ 0	353,514	(368,687)	37,166	10,744
Balance, beginning of period (in shares) at Dec. 31, 2018	21,787,728		21,787,728
Balance, beginning of period at Dec. 31, 2018	$ 24,258	12,462	$ 0	353,890	(382,196)	40,768	11,796
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock awards, net of share settlements for tax withholdings (in shares)			79,231
Net (loss) income	(1,213)	(1,884)			(1,884)	0	671
Preferred stock dividends	(756)	(756)		(756)
Deconsolidation of noncontrolling interest	(301)						(301)
Other comprehensive (loss) income	(2,336)	(2,349)				(2,349)	13
Stock-based compensation	$ 531	531		531
Balance, end of period (in shares) at Sep. 30, 2019	21,866,959		21,866,959.000
Balance, end of period at Sep. 30, 2019	$ 20,183	8,004	$ 0	353,665	(384,080)	38,419	12,179
Balance, beginning of period (in shares) at Jun. 30, 2019			21,866,959.000
Balance, beginning of period at Jun. 30, 2019	25,207	13,231	$ 0	353,778	(379,872)	39,325	11,976
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(4,006)	(4,208)			(4,208)		202
Preferred stock dividends	(258)	(258)		(258)
Other comprehensive (loss) income	(905)	(906)				(906)	1
Stock-based compensation	$ 145	145		145
Balance, end of period (in shares) at Sep. 30, 2019	21,866,959		21,866,959.000
Balance, end of period at Sep. 30, 2019	$ 20,183	$ 8,004	$ 0	$ 353,665	$ (384,080)	$ 38,419	$ 12,179