Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Non-Cash Compensation Expenses

Stock-based non-cash compensation expense 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,
	2015		2014
	(unaudited)
Cost of revenues	$	3	$	5
Selling and marketing		75		76
Research and development		169		169
General and administrative		329		467
Total non-cash stock compensation expense	$	576	$	717