Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net revenues	$ 18,871	$ 14,180
Cost of revenues	9,476	6,452
Gross margin	9,395	7,728
Operating expenses:
Selling expense	2,476	1,668
Engineering and product development expense	1,296	935
General and administrative expense	2,990	1,994
Adjustment to contingent consideration liability	1,726
Total operating expenses	8,488	4,597
Operating income	907	3,131
Other income	75	41
Earnings before income tax expense	982	3,172
Income tax expense	601	1,094
Net earnings	$ 381	$ 2,078
Net earnings per common share - basic (in dollars per share)	$ 0.04	$ 0.20
Weighted average common shares outstanding - basic (in shares)	10,326,309	10,264,565
Net earnings per common share - diluted (in dollars per share)	$ 0.04	$ 0.20
Weighted average common shares and common share equivalents outstanding - diluted (in shares)	10,365,306	10,295,337