Stock Option and Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2016

Stock Option and Incentive Plans

Schedule of total compensation cost recognized for all stock option awards in the statements of operations

Total compensation cost recognized for all stock option awards in the statements of operations is as follows (in thousands):

	Three Months Ended
	March 31,
	2016		2015
Research and development	$	233	$	127
General and administrative		506		256
Total stock-based compensation expense	$	739	$	383