OPTIONS AND WARRANTS TO PURCHASE COMMON STOCK (Tables)

6 Months Ended

Jun. 30, 2021

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule Of Warrants Or Rights [Table Text Block]

A summary of the status and changes of the warrants issued for the six months ended June 30, 2021:

	Shares Issuable
	upon Exercise of			Weighted Average
	Outstanding Warrants			Exercise Price
Outstanding at January 1, 2021		24,619,623		$	0.16
Issued		-			-
Exercised		-
Forfeited		(11,744,623	)		0.22
Outstanding at June 30, 2021		12,875,000		$	0.11

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

A summary of the status of the warrants outstanding and exercisable at June 30, 2021 is presented below:

		Warrants Outstanding and Exercisable
		Shares Issuable		Weighted Average
		upon Exercise of		Remaining		Weighted Average
Exercise Price		Outstanding Warrants		Contractual Life (years)		Exercise Price
$	0.10		11,000,000		1.45	$	0.10
$	0.15		1,875,000		0.07	$	0.15
			12,875,000		1.25	$	0.11

Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of the status and changes of the options granted under stock option plans and other agreements during the six months ended June 30, 2021:

	Shares Issued			Weighted
	Upon Exercise of			Average
	Options			Exercise Price
Outstanding at December 31, 2020		56,661,515		$	0.28
Granted		-			-
Exercised		(9,528,689	)		0.06
Forfeited		(2,391,981	)		0.24
Outstanding at June 30, 2021		44,740,845		$	0.33

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Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

A summary of the status of the options outstanding at June 30, 2020 is presented below:

	Options Outstanding						Options Exercisable
Range of per share exercise price	Shares		Weighted average remaining contractual life		Per share weighted average exercise price		Shares		Weighted average remaining contractual life		Per share weighted average exercise price
$0.04 - $0.08		28,959,881		6.44	$	0.06		27,681,410		6.44	$	0.06
$0.10 - $0.84		10,838,904		2.05		0.46		10,838,904		2.05		0.46
$1.10 - $1.90		4,942,060		1.47		1.63		4,942,060		1.47		1.63
		44,740,845		4.83	$	0.33		43,462,374		4.78	$	0.34