Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net revenues	$ 9,900	$ 10,799	$ 30,091	$ 35,106
Cost of revenues	5,144	6,037	15,765	19,554
Gross margin	4,756	4,762	14,326	15,552
Selling expense	1,255	1,322	3,972	4,283
Engineering and product development expense	945	1,006	2,866	2,910
General and administrative expense	1,469	1,445	4,548	5,101
Restructuring and other charges				359
Total operating expenses	3,669	3,773	11,386	12,653
Operating income	1,087	989	2,940	2,899
Other income	27	23	31	36
Earnings before income tax expense	1,114	1,012	2,971	2,935
Income tax expense	24	348	586	980
Net earnings	$ 1,090	$ 664	$ 2,385	$ 1,955
Net earnings per common share - basic (in Dollars per share)	$ 0.11	$ 0.06	$ 0.23	$ 0.19
Weighted average common shares outstanding - basic (in Shares)	10,377,189	10,302,417	10,358,960	10,260,601
Net earnings per common share - diluted (in Dollars per share)	$ 0.10	$ 0.06	$ 0.23	$ 0.19
Weighted average common shares and common share equivalents outstanding - diluted (in Shares)	10,404,095	10,360,377	10,383,970	10,348,180