Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

A summary of the status of our stock options as of June 30, 2016, and changes during the six-month period then ended, is presented below:

	Six Months Ended June 30, 2016
	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value
Outstanding at beginning of period		5,437,064		$	1.96
Granted		459,457			1.05
Exercised		—			—
Canceled and Forfeited		(1,504,550	)		1.58
Expired		(299,000	)		2.42
Outstanding at end of period		4,092,971		$	1.97	7.0 years	$	21,450
Exercisable at end of period		2,808,491		$	2.05	6.5 years	$	21,450

A summary of the status of our unvested restricted stock as of June 30, 2016, and changes during the six-month period then ended, is presented below:

	Six Months Ended June 30, 2016
	Number of Shares			Weighted Average Grant-Date Fair Value
Unvested at beginning of period		361,000		$	1.69
Granted		168,000			1.20
Vested		(66,000	)		1.65
Forfeited		(206,000	)		1.77
Unvested at end of period		257,000		$	1.32