NOTES PAYABLE (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

Class of Warrant or Right [Line Items]

Schedule of notes payable

	March 31,		December 31,
	2021		2020
2020 10% Notes	$	4,260,000	$	2,600,000
2019 15% Notes		—		200,000
Related party note payable		340,000		340,000
Unamortized debt discount		(1,029,965)		(251,456)
		3,570,035		2,888,544
Less: Current portion		—		—
Long-term portion	$	3,570,035	$	2,888,544

	December 31,		December 31,
	2020		2019
2020 10% Notes	$	2,600,000	$	—
2019 12% Notes		—		1,506,000
SBI Note		—		750,000
2019 15% Notes		200,000		200,000
Related party note payable		340,000		100,000
Unamortized debt discount		(251,456)		(225,649)
		2,888,544		2,330,351
Less: Current portion		—		(2,330,351)
Long-term portion	$	2,888,544	$	—

Schedule of maturities of long-term debt

Year ending December 31,	Amount
2021	$	—
2022		200,000
2023		2,940,000
	$	3,140,000

10% Warrants

Class of Warrant or Right [Line Items]

Summary of underlying assumptions used in the binomial lattice model to determine the fair value of Warrants

For purposes of determining the debt discount, the underlying assumptions used in the binomial lattice model to determine the fair value of the 10% Warrants as of December 23, 2020, were:

Current stock price	$	0.53
Exercise price	$	0.56
Risk-free interest rate		0.38 %
Expected dividend yield		—
Expected term (in years)		5.0
Expected volatility		115%

For purposes of determining the debt discount, the underlying assumptions used in the binomial lattice model to determine the fair value of the 10% Warrants as of February 8, 2021, were:

Current stock price	$	1.12
Exercise price	$	0.56
Risk-free interest rate		0.48 %
Expected dividend yield		—
Expected term (in years)		5.0
Expected volatility		118%

Current stock price	$	0.53
Exercise price	$	0.56
Risk-free interest rate		0.38 %
Expected dividend yield		—
Expected term (in years)		5.0
Expected volatility		115%

15% Warrants

Class of Warrant or Right [Line Items]

Summary of underlying assumptions used in the binomial lattice model to determine the fair value of Warrants

Current stock price	$	0.45 - 0.67
Exercise price	$	0.45
Risk-free interest rate		0.68 - 1.62 %
Expected dividend yield		—
Expected term (in years)		0.83 - 3.06
Expected volatility		112 - 119 %

Current stock price	$	0.45 - 0.67
Exercise price	$	0.45
Risk-free interest rate		0.68 - 1.62 %
Expected dividend yield		—
Expected term (in years)		0.83 - 3.06
Expected volatility		112 - 119 %

12% Warrants

Class of Warrant or Right [Line Items]

Summary of underlying assumptions used in the binomial lattice model to determine the fair value of Warrants

Current stock price	$	0.82 - 0.92
Exercise price	$	1.30
Risk-free interest rate		1.63 - 1.68	%
Expected dividend yield		—
Expected term (in years)		1.10
Expected volatility		124	%

8.5% Warrants

Class of Warrant or Right [Line Items]

Summary of underlying assumptions used in the binomial lattice model to determine the fair value of Warrants

Current stock price	$	4.18
Exercise price	$	2.35
Risk-free interest rate		2.46	%
Expected dividend yield		—
Expected term (in years)		2.0
Expected volatility		134	%
Number of iterations		5