Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (2,787)	$ (10,699)	$ 11,862
Accumulated other comprehensive income (loss)
Foreign currency translation adjustment	(805)	(1,810)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(16)	156
Total accumulated other comprehensive income (loss)	(821)	(1,654)
Total comprehensive income (loss)	$ (3,608)	$ (12,353)	$ 11,862