Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net sales:
Products	$ 54,958	$ 45,014
Services	31,435	32,296
Total net sales	86,393	77,310
Cost of sales:
Products (exclusive of depreciation and amortization shown below)	36,353	30,402
Services (exclusive of depreciation and amortization shown below)	17,764	18,973
Depreciation and amortization	2,584	2,427
Total cost of sales	56,701	51,802
Gross Profit	29,692	25,508
Operating expenses:
Selling, general and administrative (exclusive of depreciation and amortization shown below)	14,498	12,177
Depreciation and amortization	1,529	1,634
Total operating expenses	16,027	13,811
Income from operations	13,665	11,697
Other income (expense):
Interest, net	(5,033)	(1,889)
Foreign currency (loss) gain	(102)	122
Other expense, net	(2)	(12)
Total other expense	(5,137)	(1,779)
Income before income taxes	8,528	9,918
Provision for income taxes	(2,814)	(3,958)
Net income from continuing operations	5,714	5,960
Discontinued operations:
Loss from a discontinued operation, net of taxes (Note 2)		(606)
Gain on sale of a discontinued operation, net of taxes (Note 2)		887
Net Income	5,714	6,241
Preferred stock dividends		(12,611)
Income (loss) attributable to common stockholders	$ 5,714	$ (6,370)
Basic and diluted earnings (loss) per share:
Continuing operations	$ 0.10	$ (0.16)
Discontinued operation		0.01
Total basic and diluted loss per share	0.10	$ (0.15)
Dividends declared per common share	$ 0.045
Comprehensive Income
Net income	$ 5,714	$ 6,241
Currency translation adjustment	82	(780)
Total comprehensive income	$ 5,796	$ 5,461