Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid In Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2017	$ 127	$ 90,347	$ (12,555)	$ (7,567)	$ 161,380	$ 231,732
Balance (Shares) at Dec. 31, 2017	12,731,678		336,982
Net loss					(6,404)	(6,404)
Other comprehensive income (loss)				36		36
Restricted stock awards		(2,392)	$ 2,392
Restricted stock awards, shares			64,457
Employee stock settlement			$ (118)			(118)
Employee stock settlement, shares			(7,089)
Forfeiture of restricted stock awards		117	$ (117)
Forfeiture of restricted stock awards, shares			(7,991)
Stock-based compensation recognized		836				836
Balance at Mar. 31, 2018	$ 127	88,908	$ (10,398)	(7,531)	154,976	226,082
Balance (Shares) at Mar. 31, 2018	12,731,678		287,605
Cumulative effect of adoption of ASC 842					208	208
Balance at Dec. 31, 2018	$ 127	90,593	$ (9,721)	(8,188)	120,799	193,610
Balance (Shares) at Dec. 31, 2018	12,731,678		272,030
Net loss					(14,032)	(14,032)
Other comprehensive income (loss)				43		43
Restricted stock awards		(5,227)	$ 5,227
Restricted stock awards, shares			146,948
Employee stock settlement			$ (59)			(59)
Employee stock settlement, shares			(7,404)
Forfeiture of restricted stock awards		19	$ (19)
Forfeiture of restricted stock awards, shares			(2,800)
Stock-based compensation recognized		689				689
Balance at Mar. 31, 2019	$ 127	$ 86,074	$ (4,572)	$ (8,145)	$ 106,975	$ 180,459
Balance (Shares) at Mar. 31, 2019	12,731,678		135,286