11. STOCKHOLDERS' EQUITY (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Stockholders' Equity:
Warrants outstanding, beginning	6,620,620	5,017,181
Issued	2,066,667	2,076,922
Exercised	(5,155,976)	(473,483)
Cancelled	(324,401)	0
Warrants outstanding, ending	3,206,910	6,620,620
Average purchase price per share outstanding, beginning	$ 5.41	$ 4.82
Issued	6.00	6.62
Exercised	5.08	4.46
Cancelled	5.00	.00
Average purchase price per share outstanding, ending	$ 6.36	$ 5.41