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15. BUSINESS SEGMENTS (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]    
Net revenue (external customers) $ 162,317,120 $ 113,660,331
Net revenue (intersegment) 8,039,156 3,013,295
Income from operations before taxes 45,164,710 23,818,221
Income taxes 11,371,908 6,226,015
Income from operations after taxes 33,792,802 17,592,206
Total assets 356,743,226 322,982,152
Depreciation and amortization 29,095,648 27,642,222
Capital expenditures 22,858,625 6,538,611
Goodwill 29,559,174  
Bromine Segment [Member]    
Segment Reporting Information [Line Items]    
Net revenue (external customers) 52,385,491 57,949,824
Net revenue (intersegment) 8,039,156 3,013,295
Income from operations before taxes 10,854,711 9,500,428
Income taxes 2,508,902 2,214,988
Income from operations after taxes 8,345,809 7,285,440
Total assets 136,701,878 195,539,637
Depreciation and amortization 17,498,441 18,011,790
Capital expenditures $ 20,665,890 5,414,738
Goodwill  
Crude Salt Segment [Member]    
Segment Reporting Information [Line Items]    
Net revenue (external customers) $ 10,494,939 $ 10,752,226
Net revenue (intersegment)
Income from operations before taxes $ 1,183,755 $ 719,226
Income taxes 500,451 370,974
Income from operations after taxes 683,304 348,252
Total assets 40,306,628 51,632,485
Depreciation and amortization 6,136,889 6,076,042
Capital expenditures $ 2,120,622 1,123,873
Goodwill  
Chemical Products Segment [Member]    
Segment Reporting Information [Line Items]    
Net revenue (external customers) $ 99,436,690 $ 44,958,281
Net revenue (intersegment)
Income from operations before taxes $ 32,997,870 $ 14,432,851
Income taxes 8,362,555 3,640,053
Income from operations after taxes 24,635,315 10,792,798
Total assets 179,733,958 75,748,241
Depreciation and amortization 5,460,318 $ 3,554,390
Capital expenditures 72,113
Goodwill 29,559,174  
Segment Total [Member]    
Segment Reporting Information [Line Items]    
Net revenue (external customers) 162,317,120 $ 113,660,331
Net revenue (intersegment) 8,039,156 3,013,295
Income from operations before taxes 45,036,336 24,652,505
Income taxes 11,371,908 6,226,015
Income from operations after taxes 33,664,428 18,426,490
Total assets 356,742,464 322,920,363
Depreciation and amortization 29,095,648 27,642,222
Capital expenditures 22,858,625 $ 6,538,611
Goodwill $ 29,559,174  
Corporate [Member]    
Segment Reporting Information [Line Items]    
Net revenue (external customers)
Net revenue (intersegment)
Income from operations before taxes $ 128,374 $ (834,284)
Income taxes
Income from operations after taxes $ 128,374 $ (834,284)
Total assets $ 762 $ 61,789
Depreciation and amortization
Capital expenditures
Goodwill