Restricted Stock Units (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Summary of Restricted Stock Unit Activity

The following is a summary of the RSU activity for the years ended December 31, 2017, 2016 and 2015:

				Weighted
	Number of			Average
	Restricted			Grant
	Stock Units			Date Fair
	Outstanding			Value
Unvested, December 31, 2014		140,000		$	7.19
Granted		380,000			2.94
Vested		(70,000	)		7.19
Forfeited		(27,500	)		2.94
Unvested, December 31, 2015		422,500		$	3.64
Granted		660,331			3.74
Vested		(187,503	)		4.53
Unvested, December 31, 2016		895,328		$	3.53
Granted		3,873,000			0.82
Vested		(337,618	)		3.46
Forfeited		(36,054	)		3.60
Unvested, December 31, 2017		4,394,656		$	1.15