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WARRANTS (Tables)

12 Months Ended

Dec. 31, 2020

Warrants

Schedule of common stock warrants outstanding

The following table summarizes information about common stock warrants outstanding at December 31, 2020:

Outstanding														Exercisable
						Weighted
						Average				Weighted								Weighted
						Remaining				Average								Average
Exercise		Number				Contractual				Exercise				Number				Exercise
Price		Outstanding				Life (Years)				Price				Exercisable				Price
$—			6,500				3.25			$	—				6,500			$—
$0.88 - $1.91			3,237,016				4.30			$	1.43				3,237,016			$0.88 - $1.91
$8.00 - $19.80			53,452				3.37			$	12.74				53,452			$8.00 - $19.80
$440 - $920			16,225				2.19			$	733.40				16,225			$440 - $920
$1,040 - $2,000			2,367				2.18			$	1,404.85				2,367			$1,040 - $2,000
$0.88 - $2,000			3,315,560				4.27			$	6.19				3,315,560			$6.19

Schedule of option pricing

The Company utilized the Black-Scholes option pricing model and the assumptions used during the years ended December 31, 2020 and 2019:

		Year Ended
		December 31, 2020				December 31, 2019
Weighted average risk free interest rate			0.12% — 1.38%				1.75% — 2.28%
Weighted average life (in years)			1.42 — 5				5.0
Volatility			86.3% — 104.6				85.5% —87.5%
Expected dividend yield			0	%			0	%
Weighted average grant-date fair value per share of warrants granted		$	1.21			$	10.34