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9. Concentrations of Risk (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Sales to Three Largest Customers $ 1,380,246 $ 1,559,119
Total percentage of revenue 52.70% 46.90%
Kohler Corporation [Member]    
Sales to Three Largest Customers $ 445,178 $ 432,283
East Penn Manufacturing Inc.    
Sales to Three Largest Customers 148,643 536,413
Mexichem Speciality Compounds    
Sales to Three Largest Customers $ 786,425 $ 590,423