STOCK-BASED COMPENSATION (Details) - Stock Options - $ / shares	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Number of options, begining balance	2,585,500
Number of options, granted	0
Number of options, expired/cancelled	(10,381)
Number of options, exercised	0
Number of options, ending balance	2,574,669	2,585,500
Weighted-average exercise price, begining balance	$ .19
Weighted-average exercise price, granted	.00
Weighted-average exercise price, expired/cancelled	.78
Weighted-average exercise price, exercised	.00
Weighted-average exercise price, ending balance	$ .18	$ .19
Weighted-average remaining contractual term	8 years 10 months 24 days	9 years 2 months 12 days

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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No definition available.

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Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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