Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net sales:
Products	$ 29,764	$ 54,958
Services	26,244	31,435
Total net sales	56,008	86,393
Cost of sales:
Products (exclusive of depreciation and amortization shown below)	19,688	36,353
Services (exclusive of depreciation and amortization shown below)	17,441	17,764
Depreciation and amortization	2,784	2,584
Total cost of sales	39,913	56,701
Gross Profit	16,095	29,692
Operating expenses:
Selling, general and administrative (exclusive of depreciation and amortization shown below)	16,155	14,498
Depreciation and amortization	1,749	1,529
Total operating expenses	17,904	16,027
(Loss) income from operations	(1,809)	13,665
Other expense, net
Interest, net	(5,062)	(5,033)
Foreign currency gain (loss)	73	(102)
Other income (loss), net	1	(2)
Total other expense, net	(4,988)	(5,137)
(Loss) income before income taxes	(6,797)	8,528
Income tax benefit (expense)	2,291	(2,814)
Net (loss) income	$ (4,506)	$ 5,714
Basic and diluted (loss) earnings per share:
Basic and diluted (loss) earnings per share:	$ (0.08)	$ 0.10
Weighted-average shares outstanding
Basic (in shares)	55,424,559	56,542,116
Diluted (in shares)	55,424,559	56,836,082
Dividends declared per common share	$ 0.045	$ 0.045
Comprehensive (loss) income
Net (loss) income	$ (4,506)	$ 5,714
Currency translation adjustment	201	82
Total comprehensive (loss) income	$ (4,305)	$ 5,796