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10. Concentrations of Risk (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Sales to Three Largest Customers $ 1,022,441 $ 1,960,478 $ 3,461,900 $ 4,967,709
Total percentage of revenue 36.00% 54.90% 37.80% 45.60%
Alpha Gary Corporation        
Sales to Three Largest Customers $ 691,363 $ 2,541,838
Mexichem Speciality Compounds        
Sales to Three Largest Customers 414,157   1,524,253  
Kohler Corporation [Member]        
Sales to Three Largest Customers 362,770 637,838 972,083 1,462,570
East Penn Manufacturing Inc.        
Sales to Three Largest Customers $ 245,514 $ 631,277 $ 965,564 $ 963,301