Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Stock-Based Compensation

Schedule of stock-based compensation expense

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2017		2016		2017		2016
Research and development	$	180	$	143	$	533	$	490
General and administrative	2,292		1,575		6,873		5,933
Total stock-based compensation expense	$	2,472	$	1,718	$	7,406	$	6,423

Schedule of unrecognized stock-based compensation cost

As of September 30, 2017, unrecognized stock-based compensation cost, including performance-contingent RSAs for which the performance milestones were determined to be probable of achievement, was as follows:

(In thousands)	Unrecognized Compensation Cost
Stock options	$	455
RSUs	1,623
RSAs	8,887
Performance-based RSAs	38
Market-based RSUs	360
Market-based RSAs	2,425
Total unrecognized compensation cost	$	13,788