4. Revenue Recognition (Details 3) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts receivable of three largest customers	$ 288,212	$ 68,055
Total percentage of accounts receivable	53.61%	28.52%
Mexichem Speciality Compounds Inc.
Accounts receivable of three largest customers	$ 185,804	$ 0
GE Chaplin, Inc.
Accounts receivable of three largest customers	102,408	0
Earth Innovations Inc.
Accounts receivable of three largest customers	$ 0	$ 68,055