STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders Equity [Line Items]

Schedule of share-based compensation expense

	Year ended December 31,
	2020		2019
Employee Awards	$	1,411,442	$	3,880,938
Consulting Awards		92,947		85,683
	$	1,504,389	$	3,966,621

Schedule of defined benefit plan, assumptions

	Pre-Trigger			Post-Trigger
Current stock price	$	0.95		$	0.95
Exercise price	$	2.35		$	1.00
Risk-free interest rate		2.21	%		2.21	%
Expected dividend yield		—			—
Expected term (in years)		0.89			0.89
Expected volatility		123	%		123	%

	Pre-Trigger			Post-Trigger
Current stock price	$	0.70		$	0.70
Exercise price	$	1.00		$	0.68
Risk-free interest rate		1.55	%		1.55	%
Expected dividend yield		—			—
Expected term (in years)		0.47			0.47
Expected volatility		114	%		114	%

	Pre-Trigger			Post-Trigger
Current stock price	$	0.67		$	0.67
Exercise price	$	0.68		$	0.45
Risk-free interest rate		1.61	%		1.61	%
Expected dividend yield		—			—
Expected term (in years)		0.36			0.36
Expected volatility		113	%		113	%

	Pre-Trigger			Post-Trigger
Current stock price	$	0.55		$	0.55
Exercise price	$	0.45		$	0.40
Risk-free interest rate		0.18 - 0.22	%		0.18 - 0.22	%
Expected dividend yield		—			—
Expected term (in years)		0.60 - 2.60			0.60 - 2.60
Expected volatility		88 - 116	%		88 - 116	%

	Pre-Trigger			Post-Trigger
Current stock price	$	0.70		$	0.70
Exercise price	$	1.00		$	0.68
Risk-free interest rate		1.55	%		1.55	%
Expected dividend yield		—			—
Expected term (in years)		4.58			4.58
Expected volatility		114	%		114	%

	Pre-Trigger			Post-Trigger
Current stock price	$	0.67		$	0.67
Exercise price	$	0.68		$	0.45
Risk-free interest rate		1.61	%		1.61	%
Expected dividend yield		—			—
Expected term (in years)		4.47			4.47
Expected volatility		113	%		113	%

Schedule of stockholders' equity note, warrants or rights

				Weighted-
		Weighted-		Average
		Average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	per Share		Term (in years)	Intrinsic Value
Outstanding as of December 31, 2019	10,883,780	$	1.28	5.4	$	61,000
Granted	2,084,520		0.45
Exercised	—		—
Forfeited or expired	(5,701,880)		1.29
Outstanding as of December 31, 2020	7,266,420	$	1.03	5.9	$	176,000
Exercisable as of December 31, 2020	5,390,600	$	1.28	5.8	$	57,000

				Weighted-
			Weighted-	average
			average	Remaining
	Number of		Exercise Price	Contractual	Aggregate
	Shares		per Share	Term (in years)	Intrinsic Value
Outstanding as of December 31, 2019	125,000	$	1.79
Granted	10,000		0.61
Exercised	—
Forfeited or expired	(35,000)		3.08
Outstanding and exercisable as of December 31, 2020	100,000	$	1.22	2.2	$	—

				Weighted-
		Weighted-		average
		average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	per Share		Term (in years)	Intrinsic Value
Outstanding as of December 31, 2018	5,992,214	$	2.26
Granted	2,481,000		0.98
Exercised	—		—
Expired	—		—
Outstanding as of December 31, 2019	8,473,214		0.64	0.5	$	1,169,583
Granted	7,143,011		0.42
Exercised	(1,131,000)		0.40
Expired	(7,064,214)		0.63
Outstanding and exercisable as of December 31, 2020	7,421,011	$	0.46	2.0	$	478,925

Employee Awards [Member]

Stockholders Equity [Line Items]

Schedule of defined benefit plan, assumptions

	Year ended December 31,
	2020			2019
Exercise price	$	0.31 - 0.67		$	0.55 - 2.37
Stock price on date of grant	$	0.27 - 0.67		$	0.55 - 2.37
Volatility		111 - 114	%		119 - 130	%
Risk-free interest rate		0.16 - 1.53	%		1.43 - 2.60	%
Expected life (years)		3.0			3.0
Dividend yield		—			—

	Year ended December 31,
	2020			2019
Exercise price	$	0.61		$	0.71 - 2.37
Stock price, date of valuation	$	0.61		$	0.71 - 2.37
Volatility		101	%		125 - 141	%
Risk-free interest rate		1.47	%		1.64 - 2.62	%
Expected life (years)		1.0			2.0 - 5.0
Dividend yield		—			—

Feinsod Agreement [Member]

Stockholders Equity [Line Items]

Schedule of defined benefit plan, assumptions

	August 6, 2020
Current stock price	$	0.83
Exercise price	$	0.83
Vesting goal	$	4.51
Risk-free interest rate		1.73	%
Expected term (in years)		10
Expected volatility		123	%