7. COMMON STOCK (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Common stock, shares authorized	150,000,000	150,000,000
Common stock, par value	$ .001	$ 0.001
Common stock, shares issued	50,251,607	48,577,712
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Stock based compensation expense	$ 2,971,777	$ 2,528,613
Unrecognized stock-based compensation expense	2,722,518	5,117,179
Proceeds from exercise of options	$ 172,560	$ 430,919
Risk-free interest rate	0.38%
Expected volatility	100.00%
Dividend yield	0.00%
Weighted average expected life	5 years
Asset Acquisition [Member]
Stock issued for asset acquisition, shares	20,000
Stock Options [Member]
Weighted average period to recognize share-based expense	2 years 7 months 6 days
Stock issued for exercise of options, shares	71,900	245,800
Proceeds from exercise of options	$ 172,560	$ 430,919
Stock Awards [Member]
Weighted average period to recognize share-based expense	3 years 5 months 12 days
Stock issued for vested stock awards, shares	1,581,995	1,891,147
2018 Plan [Member]
Common stock reserved for future issuance	5,000,000
Shares available for future grants	3,478,533