Stock-Based Compensation

3 Months Ended

Mar. 31, 2012

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

Stock-Based Compensation

Stock-Based Compensation

The Company values stock-based awards, including stock options and restricted stock, as of the date of grant. The Company uses the Black-Scholes option-pricing model in valuing granted stock options. The fair value per share of granted restricted stock awards is equal to the Company's closing stock price on the date of grant.

The Company recognizes stock-based compensation expense, net of estimated forfeitures, using the straight-line method over the requisite service period. Forfeitures are estimated at the time of grant, and prospectively revised if actual forfeitures differ from those estimates.

The Company classifies related compensation expense in the Condensed Consolidated Statement of Operations, based on the Company department to which the recipient belongs. Stock-based compensation expense included in cost of goods sold and operating expenses during the three months ended March 31, 2012 and 2011 was as follows:

	Three Months Ended March 31,
	2012		2011
Cost of goods sold	$	88	$	40
Research and development	151		138
Clinical and regulatory affairs	34		26
Marketing and sales	282		406
General and administrative	458		188
Total	$	1,013	$	798