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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 |  |

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