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13. BUSINESS SEGMENTS (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Segment Reporting Information [Line Items]        
Net revenue (external customers) $ 31,106,964 $ 32,935,277 $ 88,451,954 $ 88,291,753
Net revenue (intersegment) 832,946 781,866 2,453,779 2,174,342
Income (loss) from operations before taxes 6,694,589 10,892,520 19,827,805 20,876,743
Income taxes 1,732,861 2,818,444 5,035,433 5,609,486
Income (loss) from operations after taxes 4,961,728 8,074,076 14,792,372 15,267,257
Total assets 320,998,479 301,725,893 320,998,479 301,725,893
Depreciation and amortization 6,793,063 6,882,633 20,602,061 20,568,172
Capital expenditures 6,459,250 314,713 6,459,250 314,713
Bromine Segment [Member]
        
Segment Reporting Information [Line Items]        
Net revenue (external customers) 15,973,528 17,093,087 43,950,056 46,300,730
Net revenue (intersegment) 832,946 781,866 2,453,779 2,174,342
Income (loss) from operations before taxes 3,131,684 5,876,150 7,748,981 10,086,575
Income taxes 793,882 1,452,755 1,964,367 2,574,710
Income (loss) from operations after taxes 2,337,802 4,423,395 5,784,614 7,511,866
Total assets 190,832,648 180,313,532 190,832,648 180,313,532
Depreciation and amortization 4,266,547 4,123,370 13,194,940 12,811,261
Capital expenditures 5,342,659 238,689 5,342,659 238,689
Crude Salt Segment [Member]
        
Segment Reporting Information [Line Items]        
Net revenue (external customers) 2,655,028 3,902,979 8,012,368 9,983,741
Net revenue (intersegment)            
Income (loss) from operations before taxes (431,901) 1,635,755 94,609 2,902,613
Income taxes (109,510) 425,640 17,483 668,660
Income (loss) from operations after taxes (322,391) 1,210,115 77,126 2,233,952
Total assets 54,799,590 58,306,651 54,799,590 58,306,651
Depreciation and amortization 1,638,806 1,873,318 4,738,524 5,120,004
Capital expenditures 1,116,591 69,933 1,116,591 69,933
Chemical Products Segment [Member]
        
Segment Reporting Information [Line Items]        
Net revenue (external customers) 12,478,408 11,939,211 36,489,530 32,007,282
Net revenue (intersegment)            
Income (loss) from operations before taxes 4,161,811 3,740,278 12,123,116 9,408,993
Income taxes 1,048,489 940,049 3,053,583 2,366,116
Income (loss) from operations after taxes 3,113,322 2,800,229 9,069,533 7,042,877
Total assets 75,322,416 63,073,106 75,322,416 63,073,106
Depreciation and amortization 887,710 885,945 2,668,597 2,636,907
Capital expenditures    6,091    6,091
Segment Total [Member]
        
Segment Reporting Information [Line Items]        
Net revenue (external customers) 31,106,964 32,935,277 88,451,954 88,291,753
Net revenue (intersegment) 832,946 781,866 2,453,779 2,174,342
Income (loss) from operations before taxes 6,861,594 11,252,183 19,966,706 22,398,181
Income taxes 1,732,861 2,818,444 5,035,433 5,609,486
Income (loss) from operations after taxes 5,128,733 8,433,739 14,931,273 16,788,695
Total assets 320,954,654 301,693,289 320,954,654 301,693,289
Depreciation and amortization 6,793,063 6,882,633 20,602,061 20,568,172
Capital expenditures 6,459,250 314,713 6,459,250 314,713
Corporate [Member]
        
Segment Reporting Information [Line Items]        
Net revenue (external customers)            
Net revenue (intersegment)            
Income (loss) from operations before taxes (167,005) (359,663) (138,901) (1,521,438)
Income taxes            
Income (loss) from operations after taxes (167,005) (359,663) (138,901) (1,521,438)
Total assets 43,825 32,604 43,825 32,604
Depreciation and amortization            
Capital expenditures