Consolidated Statements of Operations - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Total revenues		$ 86,461	$ 86,240	$ 76,045
Cost of revenues		54,200	53,948	47,494
Gross profit		32,261	32,292	28,551
Operating expenses:
Selling, general and administrative		34,239	33,023	25,924
Depreciation and amortization	[1]	2,366	2,862	4,197
Research and development		2,016	1,848	1,306
Provision for (credit to) bad debt		93	195	(39)
Other operating expenses		57	58	59
Total operating expenses		38,771	37,986	31,447
Loss from operations		(6,510)	(5,694)	(2,896)
Other expense		(251)	(260)	(123)
Interest expense		(467)	(441)	(508)
Loss before taxes		(7,228)	(6,395)	(3,527)
Income tax expense (benefit)		38	(408)	(726)
Net loss		$ (7,266)	$ (5,987)	$ (2,801)
Basic and diluted weighted average common and common equivalent shares outstanding		20,897,812	20,792,494	20,658,634
Basic and diluted (loss) per common share		$ (0.35)	$ (0.29)	$ (0.14)

[1] For the years ended December 31, 2016, 2015 and 2014, depreciation and amortization totals included $0.5 million, $0.3 million and $0.2 million, respectively that were classified as cost of revenues in the Consolidated Statements of Operations.