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STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2021

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

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

We used the following weighted-average assumptions to estimate the grant date fair value of the stock options granted for the years indicated:

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

		For the years ended December 31,
		2021				2020
Expected volatility			96	%			110	%
Expected term			6.0 years				6.2 years
Risk-free interest rate			1.01	%			0.30	%
Expected dividend yield			0.00	%			0.00	%

2015 Equity Incentive Plan [Member]

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

SCHEDULE OF OPTIONS ACTIVITY

Summarized stock option information for the 2015 Equity Incentive Plan is as follows:

SCHEDULE OF OPTIONS ACTIVITY

		Options				Weighted- average exercise price
Outstanding options at January 1, 2020			5,795,395			$	7.96
Granted, fair value of $1.88 per share			2,645,146			$	2.26
Exercised			(77,560	)			2.28
Expired/forfeited			(2,802,242	)			6.52
Outstanding options at December 31, 2020			5,560,739			$	2.21
Granted, fair value of $1.36 per share			4,877,308			$	1.75
Exercised			(630,675	)			1.32
Expired/forfeited			(1,952,521	)			4.07
Outstanding options at December 31, 2021			7,854,851			$	1.54
Non-vested options at December 31, 2020			2,507,203			$	1.29
Non-vested options at December 31, 2021			4,720,304			$	1.64

SCHEDULE OF OPTIONS OUTSTANDING AND EXERCISABLE

Further information regarding options outstanding under the 2015 Equity Incentive Plan as of December 31, 2021 is summarized below:

 SCHEDULE OF OPTIONS OUTSTANDING AND EXERCISABLE

												Weighted-average												Weighted-average
Range of exercise prices								Number of options outstanding				Remaining life in years				Exercise price				Number of options exercisable				Remaining life in years				Exercise price
$	0.34			$	0.91				494,000				9.8			$	0.84				-				-			$	-
	1.02				1.88				5,576,851				7.0				1.30				3,069,547				5.2				1.27
	2.18				2.34				1,719,000				9.2				2.29				-				-				-
	6.59				7.34				65,000				3.7				7.28				65,000				3.7				7.28
									7,854,851												3,134,547

SCHEDULE OF RESTRICTED COMMON STOCK ACTIVITY

Restricted Common Stock: Summarized stock option information for the 2015 Equity Incentive Plan is as follows:

 SCHEDULE OF RESTRICTED COMMON STOCK ACTIVITY

		Restricted common stock awards				Weighted- average grant date fair value
Outstanding awards at January 1, 2020			354,625			$	3.14
Granted			5,290,312			$	1.75
Vested			(817,054	)			2.26
Forfeited			(1,875,384	)			1.75
Outstanding awards at December 31, 2020			2,952,499			$	1.78
Granted			2,890,668			$	1.72
Vested			(2,592,259	)			1.55
Forfeited			(819,393	)			2.02
Outstanding awards at December 31, 2021			2,431,515			$	1.86

2005 Equity Incentive Plan [Member]

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

SCHEDULE OF OPTIONS ACTIVITY

Summarized information for the 2005 Equity Incentive Plan is as follows:

 SCHEDULE OF OPTIONS ACTIVITY

		Options				Weighted- average exercise price
Outstanding options at January 1, 2020			260,000			$	12.94
Expired/forfeited			(135,200	)			6.80
Outstanding options at December 31, 2020			124,800			$	8.55
Expired/forfeited			(44,800	)			21.53
Outstanding options at December 31, 2021			80,000			$	1.28

SCHEDULE OF OPTIONS OUTSTANDING AND EXERCISABLE

Further information regarding options outstanding under the 2005 Equity Incentive Plan as of December 31, 2021 is summarized below:

 SCHEDULE OF OPTIONS OUTSTANDING AND EXERCISABLE

												Weighted-average												Weighted-average
Range of exercise prices								Number of options outstanding				Remaining life in years				Exercise price				Number of options exercisable				Remaining life in years				Exercise price
$	1.28			$	1.28				80,000				1.8			$	1.28				80,000				1.8			$	1.28
									80,000												80,000

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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