Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Net revenues	$ 38,889	$ 41,796
Cost of revenues	20,191	21,334
Gross margin	18,698	20,462
Operating expenses:
Selling expense	5,797	5,735
Engineering and product development expense	3,935	3,580
General and administrative expense	6,404	6,231
Total operating expenses	16,136	15,546
Operating income	2,562	4,916
Other income (expense)	21	(7)
Earnings before income tax expense	2,583	4,909
Income tax expense	722	1,470
Net earnings	$ 1,861	$ 3,439
Net earnings per common share:
- Basic (in dollars per share)	$ 0.18	$ 0.33
- Diluted (in dollars per share)	$ 0.18	$ 0.33
Weighted average common shares outstanding:
- Basic (in shares)	10,473,210	10,431,743
- Diluted (in shares)	10,493,830	10,466,064