OPTIONS AND WARRANTS TO PURCHASE COMMON STOCK (Details 4)	3 Months Ended
Mar. 31, 2021 $ / shares shares
Number of Options Outstanding	46,704,500
Options Outstanding, Weighted Average Remaining Contractual Life (Year)	4 years 7 months 17 days
Weighted Average Exercise Price, Outstanding \| $ / shares	$ 0.32
Number of Options Exercisable	45,426,029
Options Exercisable, Weighted Average Remaining Contracrual Life (Year)	4 years 6 months 29 days
Weighted Average Exercise Price, Exercisable \| $ / shares	$ 0.33
Range of Exercise Prices (0.04 - 0.08) [Member]
Number of Options Outstanding	28,959,881
Options Outstanding, Weighted Average Remaining Contractual Life (Year)	6 years 5 months 8 days
Weighted Average Exercise Price, Outstanding \| $ / shares	$ 0.06
Number of Options Exercisable	27,681,410
Options Exercisable, Weighted Average Remaining Contracrual Life (Year)	6 years 5 months 8 days
Weighted Average Exercise Price, Exercisable \| $ / shares	$ 0.06
Range of Exercise Prices (0.04 - 0.08) [Member] \| Maximum [Member]
Number of Options Exercisable	0.08
Range of Exercise Prices (0.04 - 0.08) [Member] \| Minimum [Member]
Number of Options Exercisable	0.04
Range of Exercise Prices (0.10 - 0.84) [Member]
Number of Options Outstanding	12,802,559
Options Outstanding, Weighted Average Remaining Contractual Life (Year)	1 year 9 months 3 days
Weighted Average Exercise Price, Outstanding \| $ / shares	$ 0.42
Number of Options Exercisable	12,802,559
Options Exercisable, Weighted Average Remaining Contracrual Life (Year)	1 year 9 months 3 days
Weighted Average Exercise Price, Exercisable \| $ / shares	$ 0.42
Range of Exercise Prices (0.10 - 0.84) [Member] \| Maximum [Member]
Number of Options Exercisable	0.84
Range of Exercise Prices (0.10 - 0.84) [Member] \| Minimum [Member]
Number of Options Exercisable	0.10
Range of Exercise Prices (1.10 - 1.90) [Member]
Number of Options Outstanding	4,942,060
Options Outstanding, Weighted Average Remaining Contractual Life (Year)	1 year 5 months 19 days
Weighted Average Exercise Price, Outstanding \| $ / shares	$ 1.63
Number of Options Exercisable	4,942,060
Options Exercisable, Weighted Average Remaining Contracrual Life (Year)	1 year 5 months 19 days
Weighted Average Exercise Price, Exercisable \| $ / shares	$ 1.63
Range of Exercise Prices (1.10 - 1.90) [Member] \| Maximum [Member]
Number of Options Exercisable	1.90
Range of Exercise Prices (1.10 - 1.90) [Member] \| Minimum [Member]
Number of Options Exercisable	1.10

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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