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10. Concentrations of Risk (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Sales to Three Largest Customers $ 1,559,119 $ 1,615,840
Total percentage of revenue 46.90% 54.82%
Alpha Gary Corporation    
Sales to Three Largest Customers $ 0 $ 969,960
Ampacet Corporation    
Sales to Three Largest Customers 0 305,407
Kohler Corporation    
Sales to Three Largest Customers 432,283 340,473
East Penn Manufacturing Inc.    
Sales to Three Largest Customers 536,413 0
Mexichem Speciality Compounds    
Sales to Three Largest Customers $ 590,423 $ 0