Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

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

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following is a summary of stock option activity during the years ended December 31, 2015 and 2014:

	Number of Options Outstanding	Weighted Average Exercise Price		Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (thousands)
Outstanding – December 31, 2013	1,625,476	$	1.76
Options granted	25,000	5.68
Options exercised	79,645	1.66
Options forfeited	140,272	—
Options expired	—	—
Outstanding – December 31, 2014	1,430,559	$	1.84
Options granted	182,500	1.47
Options exercised	32,227	2.09
Options forfeited	70,000	2.61
Options expired	—	—
Outstanding – December 31, 2015	1,510,832	$	1.63	7.13	$	—
Exercisable – December 31, 2015	1,198,204	$	1.63	6.73	$	—
Exercisable – December 31, 2014	945,012	$	1.66	9.38	$	974

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The Company estimates the fair values of stock options using the Black-Scholes option-pricing model on the date of grant. For the years ended December 31, 2015 and 2014, 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,

	2015						2014
	Employee Grants			Non-Employee Grants			Employee Grants			Non-Employee Grants
Weighted-average Black-Scholes option pricing model assumptions:
Volatility	90.99		%	61.10		%	50.70		%	57.78		%
Expected term (in years)	6			6			5			10
Risk-free rate	1.49		%	0.71		%	1.00		%	2.90		%
Expected dividend yield	0.0		%	0.0		%	0.0		%	0.0		%
Weighted average grant date fair value per share	$	1.47		$	1.44		$	0.82		$	0.84

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The following is a summary of non-vested RSUs award activity for the year ended December 31, 2015 and 2014:

	2015			2014
	Number of Shares	Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
Non-vested	374,504	$	5.08	—	$	—
Shares granted	240,000	2.29		374,504	5.08
Shares vested	160,286	1.58		—	—
Shares forfeited	45,508	4.10		—	—
Non-vested	408,710	$	2.66	374,504	$	5.08