STOCK-BASED COMPENSATION PLANS (Tables)

6 Months Ended

Jun. 30, 2019

The Company used the Black Scholes option pricing model to determine the fair value of stock option grants, using the following assumptions for the three and six months ended June 30, 2019. There were no stock options granted during the three and six months ended June 30, 2018.


	For the Three Months		For the Six Months
	Ended June 30,		Ended June 30,
	2019		2019
Expected term (years)	6.25		6.25
Risk-free interest rate	2.49	%	2.59	%
Expected volatility	121.49	%	121.95	%
Expected dividend yield	—	%	—	%

Summary of Stock Option Activity Under the Option Plan

A summary of stock option activity under all equity compensation plans for the six months ended June 30, 2019, is presented below:


				Weighted-
				Average
		Weighted-		Remaining	Aggregate
	Number of	Average		Contractual	Intrinsic
	Shares	Exercise		Term	Value
	(in thousands)	Price		(Years)	(in thousands)
Outstanding at December 31, 2018	1,885	$	0.80	6.3	$	4,085
Granted	415	$	4.53
Expired	(7)	$	1.00
Forfeited	(77)	$	2.51
Exercised	(173)	$	0.79
Outstanding at June 30, 2019	2,043	$	1.49	6.5	$	15,326

Exercisable at June 30, 2019	1,216	$	0.40	4.8	$	10,449

Restricted Stock Award Activity Under all Equity Compensation Plans

A summary of restricted stock award activity under all equity compensation plans for the six months ended June 30, 2019, is presented below:


		Number of
		Shares
		(in thousands)
Granted but not vested at December 31, 2018		76
Granted		10
Forfeited		—
Vested		(15)
Granted but not vested at June 30, 2019		71