Consolidated Statements of Stockholders' Equity (Defficiency) - 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, 2014	18,785
Balance at Dec. 31, 2014	$ 77,105	$ 9,246	$ (75,959)	$ (25,574)	$ (15,182)
Share-based compensation expense		187			187
Issuance of shares for incentive plan (in shares)	104
Issuance of shares for incentive plan	$ 645				645
Vested restricted stock issued (in shares)	29
Vested restricted stock issued	$ 187	(187)
Shares cancelled to pay tax liability (in shares)	(50)
Shares cancelled to pay tax liability	$ (309)				(309)
Pension, net of income taxes of $0				(3,093)	(3,093)
Net income			6,813		6,813
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 expense		315			315
Issuance of shares for incentive plan (in shares)	99
Issuance of shares for incentive plan	$ 504				504
Vested restricted stock issued (in shares)	50
Vested restricted stock issued	$ 315	(315)
Shares cancelled to pay tax liability (in shares)	(59)
Shares cancelled to pay tax liability	$ (324)				(324)
Pension, net of income taxes of $0				6,372	6,372
Net income			21,814		21,814
Balance (in shares) at Dec. 31, 2016	18,958
Balance at Dec. 31, 2016	$ 78,123	$ 9,246	$ (47,332)	$ (22,295)	$ 17,742