STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

SCHEDULE OF STOCK BASED COMPENSATION

The following table summarizes stock option-based compensation for the three and six months ended June 30, 2020 and 2019:

	For the three months ended June 30,		For the three months ended June 30,		For the six months ended June 30,		For the six months ended June 30,
	2020		2019		2020		2019
Research and development	$	871,000	$	1,009,000	$	1,615,000	$	2,041,000
General and administrative		707,000		669,000		1,219,000		1,740,000
Stock option-based compensation expense included in operating expense		1,578,000		1,678,000		2,834,000		3,781,000
Total stock option-based compensation expense		1,578,000		1,678,000		2,834,000		3,781,000
Tax benefit		-		-		-		-
Stock option-based compensation expense, net of tax	$	1,578,000	$	1,678,000	$	2,834,000	$	3,781,000

SCHEDULE OF WEIGHTED-AVERAGE ASSUMPTIONS TO ESTIMATE THE FAIR VALUE OF THE OPTIONS GRANTED

We used the following weighted-average assumptions to estimate the fair value of the options granted for the periods indicated:

	For the three months ended June 30,		For the three months ended June 30,		For the six months ended June 30,		For the six months ended June 30,
	2020		2019		2020		2019
Expected volatility		111%		108%		111%		108%
Expected term		6.25 years		5 years		6.25 years		5 years
Risk-free interest rate		0.23%		2.21%		0.30%		2.24%
Expected dividend yield		0%		0%		0%		0%

SCHEDULE OF OPTIONS ACTIVITY

 The following table summarizes the options granted for the periods indicated:

	For the three months ended June 30,		For the three months ended June 30,		For the six months ended June 30,		For the six months ended June 30,
	2020		2019		2020		2019
Options granted		1,897,119		1,183,890		3,073,046		1,384,890
Weighted-average:
Exercise price	$	2.83	$	6.86	$	2.30	$	6.84
Grant date fair value	$	2.36	$	5.39	$	1.92	$	5.37

SCHEDULE OF RESTRICTED COMMON STOCK SHARE-BASED COMPENSATION

	For the three months ended June 30,		For the three months ended June 30,		For the six months ended June 30,		For the six months ended June 30,
	2020		2019		2020		2019
Research and development	$	147,000	$	-	$	472,000	$	-
General and administrative		40,000		78,000		179,000		250,000
Restricted stock-based compensation expense included in operating expense		187,000		78,000		651,000		250,000
Total restricted stock-based compensation expense		187,000		78,000		651,000		250,000
Tax benefit		-		-		-		-
Restricted stock-based compensation expense, net of tax	$	187,000	$	78,000	$	651,000	$	250,000