STOCK BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Weighted-Average Black-Scholes Option Pricing Model Assumptions

The assumptions used in the Black-Scholes option-pricing model and the weighted-average grant date fair value of the option awards for the periods presented were as follows:

	Three and Nine Months ended September 30,
	2019		2018
Volatility		65.01%		105%
Expected term (in years)		6		6
Risk-free rate		2.37%		2.24%
Expected dividend yield		—		—
Weighted-average grant date fair value per option	$	1.76	$	2.24

Stock options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-Based Compensation Activity

The following table is a summary of stock option activity during the nine months ended September 30, 2019:

	Number of Options Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding 2013 & 2014 Plans – December 31, 2018	2,486,646	$	1.89	7.00	$	1,550
Options granted	50,832	2.28		9.74	—
Options exercised	—	—		—	—
Options forfeited	(181,280)	2.23		—	—
Outstanding – September 30, 2019	2,356,198	$	1.89	6.33	$	628
Exercisable – September 30, 2019	1,688,640	$	1.70	5.25	$	618

Restricted stock units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-Based Compensation Activity

The following table is a summary of restricted stock units award activity during the nine months ended September 30, 2019:

	Nine Months ended
	September 30, 2019
	Number of Shares	Weighted Average Grant Date Fair Value
Non-vested at beginning of period	315,292	$	2.26
Shares vested	(56,552)	2.30
Shares granted	253,113	2.28
Non-vested	511,853	$	2.27