Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Total revenues	$ 17,844	$ 20,661
Cost of revenues	12,160	12,626
Gross profit	5,684	8,035
Operating expenses:
Selling, general and administrative	8,554	9,238
Depreciation and amortization	552	608
Research and development	610	506
Provision (credit) for bad debt	(27)	7
Other operating expenses	5	0
Total operating expenses	9,694	10,359
Loss from operations	(4,010)	(2,324)
Other income (expense)	46	(76)
Interest expense	(116)	(123)
Loss before taxes	(4,080)	(2,523)
Income tax (benefit) expense	(226)	145
Net loss	$ (3,854)	$ (2,668)
Basic and diluted weighted average common shares outstanding (in shares)	20,949,251	20,878,549
Basic and diluted loss per common share (in dollars per share)	$ (0.18)	$ (0.13)