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15. BUSINESS SEGMENTS (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) | $ 47,600,767 | $ 49,350,070 | $ 82,096,217 | $ 84,260,899
Net revenue (intersegment) | 2,670,931 | 2,518,562 | 4,493,133 | 4,024,239
Income (loss) from operations before taxes | 17,331,122 | 14,561,389 | 25,997,440 | 21,672,040
Income taxes | 4,210,422 | 3,843,298 | 6,478,093 | 5,714,786
Income (loss) from operations after taxes | 13,120,700 | 10,718,091 | 19,519,347 | 15,957,254
Total assets | 374,775,781 | 369,025,753 | 374,775,781 | 369,025,753
Depreciation and amortization | 6,644,571 | 7,527,681 | 13,514,292 | 14,906,699
Capital expenditures | 813,589 |  | 870,875 |
Goodwill | 28,944,958 | 31,396,066 | 28,944,958 | 31,396,066
Bromine Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) | 18,480,605 | 15,092,861 | 31,650,133 | 26,126,110
Net revenue (intersegment) | 2,670,931 | 2,518,562 | 4,493,133 | 4,024,239
Income (loss) from operations before taxes | 8,199,652 | 4,505,928 | 11,205,170 | 4,642,886
Income taxes | 1,810,252 | 951,896 | 2,553,622 | 1,027,302
Income (loss) from operations after taxes | 6,389,400 | 3,554,032 | 8,651,548 | 3,615,584
Total assets | 149,221,327 | 142,221,356 | 149,221,327 | 142,221,356
Depreciation and amortization | 4,144,546 | 4,501,603 | 8,512,338 | 9,236,903
Capital expenditures |  |  | 52,777 |
Goodwill |  |  |  |
Crude Salt Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) | 2,305,688 | 2,909,342 | 4,072,296 | 4,873,073
Net revenue (intersegment) |  |  |  |
Income (loss) from operations before taxes | (10,099) | (4,027) | 217,514 | 183,509
Income taxes | 235,779 | 171,681 | 299,283 | 180,738
Income (loss) from operations after taxes | (245,878) | (175,708) | (81,769) | 2,771
Total assets | 30,673,443 | 40,055,235 | 30,673,443 | 40,055,235
Depreciation and amortization | 1,339,696 | 1,589,490 | 2,532,362 | 2,990,787
Capital expenditures |  |  | 4,509 |
Goodwill |  |  |  |
Chemical Products Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) | 26,814,474 | 31,347,867 |  | 53,261,716
Net revenue (intersegment) |  |  |  |
Income (loss) from operations before taxes | 8,531,677 | 10,765,654 | (25) | 17,812,394
Income taxes | 2,164,391 | 2,719,721 |  | 4,506,746
Income (loss) from operations after taxes | 6,367,286 | 8,045,933 | (25) | 13,305,648
Total assets | 193,703,787 | 186,715,430 | 1,058,651 | 186,715,430
Depreciation and amortization | 1,160,329 | 1,436,588 |  | 2,678,979
Capital expenditures |  |  | 813,589 |
Goodwill |  | 31,396,066 |  | 31,396,066
Natural Gas Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) |  |  | 46,373,788 |
Net revenue (intersegment) |  |  |  |
Income (loss) from operations before taxes | (25) |  | 14,255,408 |
Income taxes |  |  | 3,625,188 |
Income (loss) from operations after taxes | (25) |  | 10,630,220 |
Total assets | 1,058,651 |  | 193,703,787 |
Depreciation and amortization |  |  | 2,469,592 |
Capital expenditures | 813,589 |  |  |
Goodwill | 28,944,958 |  | 28,944,958 |
Segment Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) | 47,600,767 | 49,350,070 | 82,096,217 | 84,260,899
Net revenue (intersegment) | 2,670,931 | 2,518,562 | 4,493,133 | 4,024,239
Income (loss) from operations before taxes | 16,721,205 | 15,267,555 | 25,678,067 | 22,638,789
Income taxes | 4,210,422 | 3,843,298 | 6,478,093 | 5,714,786
Income (loss) from operations after taxes | 12,510,783 | 11,424,257 | 19,199,974 | 16,924,003
Total assets | 374,657,208 | 368,992,021 | 374,657,208 | 368,992,021
Depreciation and amortization | 6,644,571 | 7,527,681 | 13,514,292 | 14,906,669
Capital expenditures | 813,589 |  | 870,875 |
Goodwill | 28,944,958 | 31,396,066 | 28,944,958 | 31,396,066
Corporate [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenue (external customers) |  |  |  |
Net revenue (intersegment) |  |  |  |
Income (loss) from operations before taxes | 609,917 | (706,166) | 319,373 | (966,749)
Income taxes |  |  |  |
Income (loss) from operations after taxes | 609,917 | (706,166) | 319,373 | (966,749)
Total assets | 118,573 | 33,732 | 118,573 | 33,732
Depreciation and amortization |  |  |  |
Capital expenditures |  |  |  |
Goodwill |  |  |  |

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