Stock-Based Compensation

6 Months Ended

Jun. 30, 2011

Stock-Based Compensation

Stock-Based Compensation

NOTE 7 - STOCK-BASED COMPENSATION

The following table shows total stock-based compensation expenses included in the condensed consolidated statement of operations for the three month and six months ended June 30, 2011 and 2010 (in thousands):

	Three months ended June  30,				Six months ended June 30,
	2011		2010		2011		2010
Costs and expenses:
Research and development	$	900	$	918	$	1,811	$	1,858
General and administrative		1,066		1,018		2,118		1,989
Total stock-based compensation expense	$	1,966	$	1,936	$	3,929	$	3,847