4. Revenue Recognition (Details 1) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Sales to Three Largest Customers	$ 1,335,729	$ 1,635,297	$ 2,686,192	$ 3,015,452
Total percentage of revenue	59.20%	57.60%	57.30%	55.30%
Accounts Receivable of Three Largest Customers	$ 269,348	$ 283,284	$ 269,348	$ 283,284
Total percentage of accounts receivable			58.40%	78.10%
Mexichem Speciality Compounds
Sales to Three Largest Customers	669,103	769,998	$ 1,397,681	$ 1,556,423
Accounts Receivable of Three Largest Customers	148,211	0	148,211	0
East Penn Manufacturing Inc.
Sales to Three Largest Customers	0	363,979	0	512,621
Kohler Corporation [Member]
Sales to Three Largest Customers	334,778	501,320	651,550	946,498
Ampacet Corporation
Sales to Three Largest Customers	146,118	0	330,260	0
ZEO, Inc.
Sales to Three Largest Customers	185,730	0	306,701	0
Nutreco Canada
Accounts Receivable of Three Largest Customers	0	25,657	0	25,657
Ralco Mix Products
Accounts Receivable of Three Largest Customers	0	16,000	0	16,000
Axens [Member]
Accounts Receivable of Three Largest Customers	38,404	0	38,404	0
Teck America
Accounts Receivable of Three Largest Customers	$ 82,733	$ 241,627	$ 82,733	$ 241,627