Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

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

Schedule of Share-based Compensation Expense

Share-based compensation expense has been recorded as follows:

	Three months ended September 30,				Nine months ended September 30,
	2012		2011		2012		2011
Cost of goods sold	$	2	$	—	$	3	$	—
Sales and marketing	15		4		45		14
Research and product development	9		4		26		12
General and administrative	39		40		102		105
	$	65	$	48	$	176	$	131

Share-based Compensation - Black-Scholes assumptions

In applying the Black-Scholes methodology to the options granted, the Company used the following assumptions:

	Three months ended September 30,		Nine months ended September 30,
	2012	2011	2012	2011
Risk-free interest rate, average	1.1%	1.4%	1.3%	1.7%
Expected option life, average	7.3 years	7.1 years	7.2 years	7.0 years
Expected price volatility, average	51.1%	51.9%	51.4%	51.8%
Expected dividend yield	0.0%	0.0%	0.0%	0.0%
Weighted average per share fair value	$2.13	$3.35	$2.19	$3.16