STOCKHOLDERS' EQUITY AND SHARE-BASED COMPENSATION EXPENSE (Tables)

6 Months Ended

Jun. 30, 2014

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

Share-based compensation expense

The Company recognized share-based compensation expense as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Costs of product sales	$	660	$	262	$	1,197	$	429
Research and development	637		202		1,144		531
Selling, general and administrative	1,830		812		3,931		2,150
Total share-based compensation expense	$	3,127	$	1,276	$	6,272	$	3,110