CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands	Total	Parent	Preferred Stock	Common Stock	Treasury Stock	Paid-in Capital	Retained Earnings	Noncontrolling Interest
Balance at beginning at Dec. 31, 2019	$ 296,516	$ 239,499	$ 3,601	$ 164	$ (6,395)	$ 78,421	$ 163,708	$ 57,017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	1,064	640					640	424
Balance at ending at Jun. 30, 2020	297,580	240,139	3,601	164	(6,395)	78,421	164,348	57,441
Balance at beginning at Mar. 31, 2020	300,904	242,445	3,601	164	(6,395)	78,421	166,654	58,459
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(3,324)	(2,306)					(2,306)	(1,018)
Balance at ending at Jun. 30, 2020	297,580	240,139	3,601	164	(6,395)	78,421	164,348	57,441
Balance at beginning at Dec. 31, 2020	330,406	236,791	1,801	162	(2)	62,092	172,738	93,615
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cancellation of treasury shares	0				2	(2)
Net (loss) income	(10,446)	(9,260)					(9,260)	(1,186)
Balance at ending at Jun. 30, 2021	319,960	227,531	1,801	162	0	62,090	163,478	92,429
Balance at beginning at Mar. 31, 2021	353,621	254,859	1,801	162	0	62,090	190,806	98,762
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(33,661)	(27,328)					(27,328)	(6,333)
Balance at ending at Jun. 30, 2021	$ 319,960	$ 227,531	$ 1,801	$ 162	$ 0	$ 62,090	$ 163,478	$ 92,429