Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

The following is a summary of stock option activity during the years ended December 31, 2017 and 2016:

	Number of Options Outstanding	Weighted Average Exercise Price		Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (thousands)
Outstanding – December 31, 2015	1,510,832	1.63			$	—
Options granted	295,000	1.12
Options exercised	67,000	0.76
Options forfeited	131,486	0.97
Outstanding – December 31, 2016	1,607,346	$	0.83	7.07	$	—
Options granted	898,334	$	2.13
Options exercised	141,840	$	1.60
Options forfeited	22,500	$	1.78
Outstanding – December 31, 2017	2,341,340	$	1.77	5.78	$	1,087
Exercisable – December 31, 2017	1,280,979	$	1.60	5.78	$	815
Exercisable – December 31, 2016	1,229,704	$	0.77	6.48	$	—

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

For the years ended December 31, 2017 and 2016, the assumptions used in the Black-Scholes option pricing model, which was used to estimate the grant date fair value per option, were as follows:

	2017			2016
	Employee Grants			Employee Grants
Weighted-average Black-Scholes option pricing model assumptions:
Volatility	138.90		%	148.68		%
Expected term (in years)	6			7
Risk-free rate	2.00		%	1.26		%
Expected dividend yield	0.0		%	0.0		%
Weighted average grant date fair value per share	$	2.05		$	1.15

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

The following is a summary of non-vested RSUs award activity for the years ended December 31, 2017 and 2016:

	2017			2016
	Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
Non-vested	185,260	$	2.67	408,710	$	2.66
Shares granted	576,212	1.95		200,000	1.20
Shares vested	322,760	1.92		395,117	1.99
Shares forfeited	—	—		28,333	1.74
Non-vested	438,712	$	2.28	185,260	$	2.67