Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net revenues	$ 43,376	$ 47,266
Cost of revenues	24,317	24,373
Gross margin	19,059	22,893
Operating expenses:
Selling expense	5,425	5,708
Engineering and product development expense	3,895	3,240
General and administrative expense	6,430	6,367
Restructuring and other charges	313
Total operating expenses	16,063	15,315
Operating income	2,996	7,578
Other income	57	81
Earnings before income tax expense (benefit)	3,053	7,659
Income tax expense (benefit)	897	(2,204)
Net earnings	$ 2,156	$ 9,863
Net earnings per common share:
- Basic (in Dollars per share)	$ 0.21	$ 0.97
- Diluted (in Dollars per share)	$ 0.21	$ 0.96
Weighted average common shares outstanding:
- Basic (in Shares)	10,273,377	10,147,708
- Diluted (in Shares)	10,347,077	10,285,621