Share-based Compensation

9 Months Ended

Sep. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

(8) Share-based Compensation

For the three and nine month periods ended September 30, 2018 and 2017, the Company recognized the following non-cash, share-based compensation expense in the statements of operations (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Research and development	$	26	$	44	$	92	$	124
General and administrative		32		75		123		215
Total	$	58	$	119	$	215	$	339

Stock option transactions for the nine month period ended September 30, 2018 under the Company’s stock incentive plans were as follows:

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2017		611,975		$	6.00		8.14
Granted		40,000			0.72
Exercised	—			—
Forfeited and cancelled		(47,710	)		8.37
Options outstanding at September 30, 2018		604,265		$	5.47		7.54
Options exercisable at September 30, 2018		447,317		$	6.50		7.29
Options vested and expected to vest		604,014		$	5.47		7.54

Stock award transactions related to restricted stock units for the nine month period ended September 30, 2018 under the Company’s stock incentive plans were as follows:

	Number of Shares			Weighted Average Grant Date Fair Value
Restricted stock units outstanding at December 31, 2017		15,168		$	7.94
Granted		—			—
Vested and released		(14,935	)		7.98
Forfeited and cancelled		—			—
Restricted stock units outstanding at September 30, 2018		233		$	5.23