Condensed Consolidated Statements of Stockholders' Equity (Deficiency) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2015	18,868
Balance at Dec. 31, 2015	$ 77,628	$ 9,246	$ (69,146)	$ (28,667)	$ (10,939)
Share-based compensation	$ 503	53			556
Vested restricted stock issued (in shares)	8
Vested restricted stock issued	$ 53	(53)
Shares cancelled to pay tax liability (in shares)	(47)
Shares cancelled to pay tax liability	$ (236)				(236)
Other comprehensive income - pension				253	253
Net income			(1,358)		(1,358)
Balance (in shares) at Mar. 31, 2016	18,929
Balance at Mar. 31, 2016	$ 77,948	9,246	(70,504)	(28,414)	(11,724)
Share-based compensation (in shares)	100
Balance (in shares) at Dec. 31, 2016	18,958
Balance at Dec. 31, 2016	$ 78,123	9,246	(47,332)	(22,295)	17,742
Share-based compensation		87			87
Vested restricted stock issued (in shares)	14
Vested restricted stock issued	$ 87	(87)
Shares cancelled to pay tax liability (in shares)	(4)
Shares cancelled to pay tax liability	$ (50)				(50)
Other comprehensive income - pension				204	204
Net income			5,832		5,832
Balance (in shares) at Mar. 31, 2017	18,968
Balance at Mar. 31, 2017	$ 78,160	$ 9,246	$ (41,500)	$ (22,091)	$ 23,815