Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Stock-Based Compensation [Abstract]

Stock-based non-cash compensation expenses

Stock-based non-cash compensation expenses related to stock options, restricted stock grants and the employee stock purchase plan were recorded in the financial statements as follows (in thousands):

	Three Months Ended March 31, 2013
	2013		2012
	(unaudited)
Cost of revenues	$	5	$	4
Selling and marketing		226		217
Research and development		209		186
General and administrative		465		765
Restructuring expense		—		6
Total non-cash stock compensation expense	$	905	$	1,178