12. Warrants (Details-Warrants Outstanding) - Warrants [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Shares
Warrants outstanding, beginning balance	1,300	1,450
Warrants expired	0	0
Warrants cancelled	0	0
Warrants granted	0	0
Warrants exercised	0	(150)
Warrants outstanding, ending balance	1,300	1,300
Warrants exercisable	1,300
Weighted Average Exercise Price
Weighted price, beginning balance	$ 3.00	$ 3.00
Weighted price, warrants expired
Weighted price, warrants cancelled
Weighted price, warrants granted
Weighted price, warrants exercised		(3.00)
Warrants outstanding, ending balance	3.00	$ 3.00
Weighted price, warrants exercisable	$ 3.00