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4. Revenue Recognition (Details 1) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Sales to three largest customers	$ 1,098,095	$ 1,189,611	$ 2,376,886	$ 2,379,491
Total percentage of revenue	48.33%	52.70%	50.27%	50.70%
Accounts receivable of three largest customers	$ 176,190		$ 176,190		$ 214,769
Total percentage of accounts receivable				42.25%	49.00%
Mexichem Speciality Compounds
Sales to three largest customers	375,514	$ 669,103	1,059,525	$ 1,397,681
Nyacol Nanotechnologies
Sales to three largest customers	267,638	0	404,324	0
Kohler Corporation
Sales to three largest customers	454,943	334,778	913,037	651,550
Accounts receivable of three largest customers	123,106		123,106		$ 0
Ampacet Corporation
Sales to three largest customers	0	0	0	330,260
ZEO, Inc.
Sales to three largest customers	0	$ 185,730	0	$ 0
DanaMart
Accounts receivable of three largest customers	0		0		143,890
Axens
Accounts receivable of three largest customers	25,121		25,121		34,912
Earth Innovations
Accounts receivable of three largest customers	0		0		35,967
Nutreco Canada Inc.
Accounts receivable of three largest customers	$ 27,963		$ 27,963		$ 0

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