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15. BUSINESS SEGMENTS (Details 2) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 49,350,070 $ 31,752,814 $ 84,260,899 $ 57,344,990
Shandong Maroi Chemical Company Limited [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 5,086,000 $ 5,133,000 $ 8,951,000 $ 8,672,000
Percentage of Total Revenue (%) 10.30% 16.20% 10.60% 15.10%
Shandong Maroi Chemical Company Limited [Member] | Bromine Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 2,382,000 $ 2,505,000 $ 4,072,000 $ 4,088,000
Shandong Maroi Chemical Company Limited [Member] | Crude Salt Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer 731,000 693,000 1,195,000 1,264,000
Shandong Maroi Chemical Company Limited [Member] | Chemical Products Segment [Member]        
Revenue, Major Customer [Line Items]        
Revenue from major customer $ 1,973,000 $ 1,935,000 $ 3,684,000 $ 3,320,000