Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues	$ 2,189	$ 2,240
Cost of revenues	1,361	1,313
Gross profit	828	927
Operating expenses:
Engineering and product development	172	162
Selling and marketing	267	238
General and administrative	375	411
Total operating expenses	814	811
Operating income	14	116
Other income (expenses) , net	93	(29)
Income before income taxes	107	87
Income taxes	0	12
Net income	$ 107	$ 75
Basic net earnings per share (in Dollars per share)	$ 0.016	$ 0.011
Diluted net earnings per share (in Dollars per share)	$ 0.016	$ 0.011