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15. BUSINESS SEGMENTS (Details 2) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 47,600,767 $ 49,350,070 $ 82,096,217 $ 84,260,899
Shandong Morui Chemical Company Limited [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 5,651 $ 5,086 $ 9,861 $ 8,951
Percentage of Total Revenue (%) 11.90% 10.30% 12.00% 10.60%
Shandong Morui Chemical Company Limited [Member] | Bromine Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 3,269 $ 2,382 $ 5,692 $ 4,072
Shandong Morui Chemical Company Limited [Member] | Crude Salt Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer 686 731 1,172 1,195
Shandong Morui Chemical Company Limited [Member] | Chemical Products Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 1,696 $ 1,973 $ 2,997 $ 3,684