CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 3 months ended Mar. 31, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Accumulated Deficit	AOCI Attributable to Parent	Common Stock	Additional Paid-in Capital	Treasury Stock
Balance at Dec. 31, 2017	$ 81,796	$ (715,476)	$ (113)	$ 2,157	$ 812,536	$ (17,308)
Balance (in shares) at Dec. 31, 2017				21,573
Balance (in shares) at Dec. 31, 2017						999
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,170)	(6,170)
Issuance of restricted stock, net of tax withholdings	(150)				(17)	$ (133)
Issuance of restricted stock, net of tax withholdings (in shares)						13
Stock-based compensation expense	277				277
Other comprehensive income	82		82
Balance at Mar. 31, 2018	$ 75,835	$ (721,646)	$ (31)	$ 2,157	$ 812,796	$ (17,441)
Balance (in shares) at Mar. 31, 2018				21,573
Balance (in shares) at Mar. 31, 2018						1,012