Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Sales and service revenue
Product sales	$ 74,480	$ 84,158	$ 150,341	$ 162,616
Service revenue	9,513	13,392	20,983	27,409
Net sales	83,993	97,550	171,324	190,025
Cost of sales and service revenue
Cost of product sales	59,346	67,147	119,682	129,697
Cost of service revenue	9,112	11,633	19,877	24,360
Cost of sales	68,458	78,780	139,559	154,057
Gross profit	15,535	18,770	31,765	35,968
Selling, general and administrative expenses	11,767	12,392	23,621	25,002
Goodwill and Intangible Asset Impairment	28,368	0	28,368	0
Restructuring expense	241	518	1,187	792
Income from operations	(24,841)	5,860	(21,411)	10,174
Other (expense) income:
Interest expense	(5,213)	(5,556)	(10,476)	(11,148)
Other, net	(256)	(75)	(347)	47
Total other expense	(5,469)	(5,631)	(10,823)	(11,101)
(Loss) income before income taxes	(30,310)	229	(32,234)	(927)
(Benefit) provision for income taxes	(410)	(149)	(575)	160
Net (loss) income	(29,900)	378	(31,659)	(1,087)
Other comprehensive (loss) income:
Change in foreign currency translation adjustment	(74)	80	(88)	1
Total comprehensive (loss) income	$ (29,974)	$ 458	$ (31,747)	$ (1,086)
Amounts per common share:
Net (loss) income per common share	$ (2.28)	$ 0.03	$ (2.43)	$ (0.08)
Net (loss) income per common share assuming dilution	$ (2.28)	$ 0.03	$ (2.43)	$ (0.08)
Weighted average common shares (in shares)	13,125,666	12,850,421	13,050,575	12,822,747
Weighted average dilutive common shares outstanding (in shares)	13,125,666	13,088,390	13,050,575	12,822,747