Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Schedule of stock-based employee compensation expense included in unaudited consolidated statements of comprehensive income

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Cost of services	$	15	$	12	$	30	$	23
Research and development		34		26		71		53
Selling and marketing		6		5		12		10
General and administrative		242		174		506		359
Stock-based compensation expense	$	297	$	217	$	619	$	445