Stock-Based Compensation (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

Schedule of Compensation Based Stock Option Activity

Compensation based stock option activity for qualified and unqualified stock options are summarized as follows:

			Weighted
For the three months ended March 31, 2021			Average
	Shares		Exercise Price
Outstanding at January 1, 2021		3,941,301	$	0.78
Outstanding at March 31, 2021		3,941,301	$	0.78

For the year ended December 31, 2020

				Weighted
				Average
	Shares			Exercise Price
Outstanding at January 1, 2020		6,145,044		$	0.75
Expired or canceled		(2,203,743	)		0.70
Outstanding at December 31, 2020		3,941,301		$	0.78

Compensation based stock option activity for qualified and unqualified stock options for the years ended December 31, 2020 and 2019 are summarized as follows:

				Weighted
For the year ended December 31, 2020				Average
	Shares			Exercise Price
Outstanding at January 1, 2020		6,145,044		$	0.75
Expired or cancelled		(2,203,743	)		0.70
Outstanding at December 31, 2020		3,941,301		$	0.78

				Weighted
For the year ended December 31, 2019				Average
	Shares			Exercise Price
Outstanding at January 2019		6,785,617		$	0.75
Expired or canceled		(640,573	)		0.62
Outstanding at December 31, 2019		6,145,044		$	0.75

Schedule of Options to Purchase Shares of Common Stock Outstanding and Exercisable

The following table summarizes information about options to purchase shares of the Company’s Common Stock outstanding and exercisable at March 31, 2021:

						Weighted-
				Weighted-		Average
		Outstanding		Average		Exercise		Number
Exercise prices		Options		Remaining Life		Price		Exercisable
$	0.22		1,750,000		7.22	$	0.22		1,750,000
	0.38		900,000		5.79		0.38		900,000
	0.73		762,500		4.97		0.73		762,500
	1.37		150,000		4.30		1.37		150,000
	1.43		300,000		4.16		1.43		300,000
	11.88		2,359		0.76		11.88		2,359
	15.00		75,000		4.16		15.00		75,000
	19.80		1,442		0.59		19.80		1,442
			3,941,301		6.05	$	0.78		3,941,301

The following table summarizes information about options to purchase shares of the Company’s Common Stock outstanding and exercisable at December 31, 2020:

				Weighted-		Weighted-
				Average		Average
		Outstanding		Remaining Life		Exercise		Number
Exercise prices		Options		In Years		Price		Exercisable
$	0.22		1,750,000		7.47	$	0.22		1,750,000
	0.38		900,000		6.03		0.38		900,000
	0.73		762,500		5.22		0.73		762,500
	1.37		150,000		4.55		1.37		150,000
	1.43		300,000		4.41		1.43		300,000
	11.88		2,359		1.00		11.88		2,359
	15.00		75,000		4.41		15.00		75,000
	19.80		1,442		0.83		19.80		1,442
			3,941,301		6.30	$	0.78		3,941,301

Schedule of Warrants Activity

The issuance of warrants to purchase shares of the Company’s Common Stock, including those attributed to debt issuances, as of March 31, 2021 and December 31, 2020 are summarized as follows:

			Weighted-
			Average
	Shares		Exercise Price
Outstanding at January 1, 2021		18,702,500	$	0.20
Issued during three months ended March 31, 2021		2,035,000		0.20
Outstanding at March 31, 2021		20,737,500	$	0.20

				Weighted-
				Average
For the year ended December 31, 2020	Shares			Exercise Price
Outstanding at January 1, 2020		19,515,787		$	0.60
Issued during the year ended December 31, 2020		17,215,000			0.20
Expired or cancelled		(18,028,287	)		0.63
Outstanding at December 31, 2020		18,702,500		$	0.20

The issuance of warrants to purchase shares of the Company’s Common Stock, including those attributed to debt issuances, for the years ended December 31, 2020 and 2019, respectively are summarized as follows:

				Weighted-
				Average
For the year ended December 31, 2020	Shares			Exercise Price
Outstanding at January 1, 2020		19,515,787		$	0.60
Issued during the year ended December 31, 2020		17,215,000			0.20
Expired or cancelled		(18,028,287	)		0.63
Outstanding at December 31, 2020		18,702,500		$	0.20

				Weighted-
For the year ended December 31, 2019				Average
	Shares			Exercise Price
Outstanding at January 1, 2019		24,380,893		$	1.05
Expired or cancelled		(4,865,106	)		2.82
Outstanding at December 31, 2019		19,515,787		$	0.60

Schedule of Warrants Outstanding and Exercisable

The following table summarizes information about warrants outstanding and exercisable at March 31, 2021:

		Outstanding and exercisable
				Weighted-		Weighted-
				Average		Average
		Number		Remaining Life		Exercise		Number
Exercise Price		Outstanding		in Years		Price		Exercisable
$	0.20	1,487,500		2.08		$	0.20	1,487,500
	0.20		19,250,000		2.15		0.20		19,250,000
			20,737,500		2.15	$	0.20		20,737,500

The following table summarizes information about warrants outstanding and exercisable at December 31, 2020:

		Outstanding and exercisable
				Weighted-		Weighted-
				Average		Average
		Number		Remaining Life		Exercise		Number
Exercise Price		Outstanding		in Years		Price		Exercisable
$	0.20		1,487,500		2.50	$	0.20		1,487,500
	0.20		3,465,000		2.75-3.00		0.20		-
	0.20		13,750,000		2.50		0.20		13,750,000
			18,702,500		2.50	$	0.20		15,237,500

Schedule of Black Scholes Valuation Allowance Model of Warrants

Expected Term	3 years
Expected volatility	140.5	%
Risk-free interest rates	1.40	%
Dividend yields	0.00	%

Expected Term	3 years
Expected volatility	140.5	%
Risk-free interest rates	1.40	%
Dividend yields	0.00	%

Private Placement [Member]

Schedule of Black Scholes Valuation Allowance Model of Warrants

Expected Term	1.5 years
Expected volatility	168.5%-191.9	%
Risk-free interest rates	0.13%-0.15	%
Dividend yields	0.00	%