CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained earnings	Treasury stock	Non controlling interest	Accum Other Comp (Loss)	Series A preferred Stock	Series B preferred Stock
Beginning Balance at Dec. 31, 2016	$ 252,549	$ 173	$ 152,313	$ 117,395	$ 0	$ 926	$ (18,274)	$ 1	$ 15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	(90)			(90)
Compensation expense for restricted stock	1,708		1,708
Tax related items for share based awards	(934)		(934)
Issuance of shares of common stock	1	1
Cumulative translation adjustment	(1,217)						(1,217)
Net income	16,529			16,888		(359)
Ending Balance at Dec. 31, 2017	268,546	174	153,087	134,193	0	567	(19,491)	1	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	(90)			(90)
Compensation expense for restricted stock	2,549		2,549
Tax related items for share based awards	(340)		(340)
Issuance of shares of common stock	894		894
Cumulative translation adjustment	224						224
Net income	35,521			35,632		(111)
Non-controlling interest holder contributions, net of tax benefits						950
Ending Balance at Dec. 31, 2018	308,254	174	156,190	169,735	0	1,406	(19,267)	1	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends paid	(90)			(90)
Compensation expense for restricted stock	1,963		1,963
Tax related items for share based awards	(267)		(267)
Issuance of shares of common stock	0
Cumulative translation adjustment	(687)						(687)
Net income	35,775			36,035		(260)
Non-controlling interest holder contributions, net of tax benefits	0
Ending Balance at Dec. 31, 2019	$ 344,948	$ 174	$ 157,886	$ 205,680	$ 0	$ 1,146	$ (19,954)	$ 1	$ 15