Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule Of Share Based Compensation Expenses [Table Text Block]

Stock-based compensation expense follows (in thousands):

	Three Months Ended March 31
	2013		2012
Cost of Sales	$	7	$	6
Research and Development		153		120
Marketing and Sales		127		111
General and Administration		287		295
Total Stock-Based Compensation	$	574	$	532