STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2015

STOCK-BASED COMPENSATION [Abstract]

Employee and consultant stock-based compensation expense

The Company recorded employee stock-based compensation expense as follows:

	Three Months Ended March 31,
(In thousands)	2015		2014
Cost of goods sold	$	32	$	40
Research and development		584		559
General and administrative		2,237		1,776
Total Stock-Based Compensation Expense	$	2,853	$	2,375

Summary of the activity in stock option plan

A summary of the activity in the 2010 Equity Incentive Plan, the 2006 Equity Compensation Plan, as amended and the Company's other stock option plans, is as follows:

Three Months Ended March 31, 2015	Option Shares			Weighted-average  Exercise Price
Beginning balance		8,857,961		$	7.71
Granted		1,635,861			9.75
Exercised		(533,399	)		4.10
Canceled		(296,467	)		11.03
Outstanding Balance at Year End		9,663,956			8.15