CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Total
BALANCE at Dec. 31, 2013	$ 141,377	$ 24,177	$ (82,860)	$ 66,064	$ (3,562)	$ 145,196
BALANCE (in shares) at Dec. 31, 2013	29,919,761
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(56,133)	0	(56,133)
Employee pension plan adjustments	0	0	0	0	(3,905)	(3,905)
Stock-based compensation expense
Restricted stock	$ 0	2,517	0	0	0	2,517
Restricted stock (in shares)	158,308
Stock options	$ 0	104	0	0	0	104
Net share settlement for equity-based compensation	$ 0	(448)	0	0	0	(448)
Net share settlement for equity-based compensation (in shares)	(144,983)
Cash dividend	$ 0	0	0	(4,321)	0	(4,321)
BALANCE at Dec. 31, 2014	$ 141,377	26,350	(82,860)	5,610	(7,467)	83,010
BALANCE (in shares) at Dec. 31, 2014	29,933,086
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(3,350)	0	(3,350)
Employee pension plan adjustments	0	0	0	0	395	395
Stock-based compensation expense
Restricted stock	$ 0	1,095	0	0	0	1,095
Restricted stock (in shares)	(119,791)
Stock options	$ 0	33	0	0	0	33
Net share settlement for equity-based compensation	$ 0	(186)	0	0	0	(186)
Net share settlement for equity-based compensation (in shares)	(85,740)
BALANCE at Dec. 31, 2015	$ 141,377	27,292	(82,860)	2,260	(7,072)	$ 80,997
BALANCE (in shares) at Dec. 31, 2015	29,727,555					29,727,555
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 0	0	0	(28,304)	0	$ (28,304)
Employee pension plan adjustments	0	0	0	0	971	971
Stock-based compensation expense
Restricted stock	$ 0	1,440	0	0	0	1,440
Restricted stock (in shares)	1,029,267
Net share settlement for equity-based compensation	$ 0	(178)	0	0	0	(178)
Net share settlement for equity-based compensation (in shares)	(71,805)
BALANCE at Dec. 31, 2016	$ 141,377	$ 28,554	$ (82,860)	$ (26,044)	$ (6,101)	$ 54,926
BALANCE (in shares) at Dec. 31, 2016	30,685,017					30,685,017