WARRANTS (Tables)

12 Months Ended

Dec. 31, 2018

Warrants [Abstract]

Schedule of option pricing

The following table summarizes information about common stock warrants outstanding at December 31, 2018:

Outstanding				Exercisable
		Weighted
		Average	Weighted		Weighted
		Remaining	Average		Average
Exercise	Number	Contractual	Exercise	Number	Exercise
Price	Outstanding	Life (Years)	Price	Exercisable	Price
$0.20	15,873	7.84	$0.20	15,873	$0.20
$11.00	14,182	3.86	$11.00	14,182	$11.00
$12.00	3,750	4.33	$12.00	3,750	$12.00
$13.20	7,407	3.84	$13.20	7,407	$13.20
$14.00	106,286	3.87	$14.00	106,286	$14.00
$15.00	6,795	3.37	$15.00	6,795	$15.00
$16.00	24,083	1.69	$16.00	24,083	$16.00
$17.40	86,207	4.37	$17.40	86,207	$17.40
$18.80	384,589	4.38	$18.80	384,589	$18.80
$20.00	14,000	3.94	$20.00	14,000	$20.00
$22.00	37,974	2.68	$22.00	37,974	$22.00
$23.00	85,000	4.24	$23.00	85,000	$23.00
$26.00	49,679	4.29	$26.00	49,679	$26.00
$27.00	55,556	4.37	$27.00	55,556	$27.00
$44.00	31,250	4.06	$44.00	31,250	$44.00
$45.00	5,625	4.07	$45.00	5,625	$45.00
$50.00	8,125	4.07	$50.00	8,125	$50.00
$0.20 - $50.00	936,381	4.18	$20.19	936,381	$20.19

Schedule of the Black-Scholes option pricing model and the assumptions

The Company utilized the Black-Scholes option pricing model and the assumptions used during the years ended December 31, 2018 and 2017:

	2018			2017
Weighted average risk-free interest rate		2.41% — 2.94%			1.42% — 2.01%
Weighted average life (in years)		4.8			4.8
Volatility		124.8% — 138.4%			98.5% — 128.7%
Expected dividend yield		0	%		0	%
Weighted average grant-date fair value per share of warrants granted	$	15.80		$	8.20