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13. BUSINESS SEGMENTS (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) |  | $ 343,080 | $ 23,840,391 | $ 2,594,941 | $ 104,160,873
Net revenue (intersegment) |  | 0 | 1,216,406 | 0 | 6,305,642
Income (loss) from operations before income taxes (benefit) |  | (26,798,917) | 4,835,252 | (41,927,504) | 34,130,721
Income tax expense (benefit) |  | (7,181,521) | 1,509,321 | (10,258,508) | 9,152,597
Income (loss) from operations after income taxes (benefit) |  | (19,617,396) | 3,325,931 | (31,668,996) | 24,978,124
Total assets |  | 336,500,369 | 402,569,182 | 336,500,369 | 402,569,182
Depreciation and amortization |  | 4,666,212 | 5,232,714 | 14,177,727 | 16,042,003
Capital expenditures |  | 1,079,127 | 563,760 | 11,412,848 | 623,735
Goodwill |  | 27,902,709 | 28,920,005 | 27,902,709 | 28,920,005
Bromine Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) | [1] | 0 | 9,549,777 | 0 | 41,895,304
Net revenue (intersegment) | [1] | 0 | 1,216,406 | 0 | 6,305,642
Income (loss) from operations before income taxes (benefit) | [1] | (24,369,917) | 2,257,069 | (35,537,744) | 17,269,984
Income tax expense (benefit) | [1] | (4,774,432) | 564,267 | (7,745,098) | 4,358,455
Income (loss) from operations after income taxes (benefit) | [1] | (19,595,485) | 1,692,802 | (27,792,646) | 12,911,529
Total assets | [1] | 119,939,092 | 161,722,622 | 119,939,092 | 161,722,622
Depreciation and amortization | [1] | 3,948,751 | 3,556,296 | 11,686,782 | 11,349,477
Capital expenditures | [1] | 936,598 | 466,636 | 8,843,486 | 466,636
Goodwill | [1] | 0 | 0 | 0 | 0
Crude Salt Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) | [1] | 343,080 | 2,054,729 | 1,981,573 | 6,390,390
Net revenue (intersegment) | [1] | 0 | 0 | 0 | 0
Income (loss) from operations before income taxes (benefit) | [1] | (2,611,203) | 497,783 | (5,150,679) | 2,434,872
Income tax expense (benefit) | [1] | (2,171,383) | 117,494 | (2,613,721) | 586,240
Income (loss) from operations after income taxes (benefit) | [1] | (439,820) | 380,289 | (2,536,958) | 1,848,632
Total assets | [1] | 39,297,116 | 36,586,589 | 39,297,116 | 36,586,589
Depreciation and amortization | [1] | 600,912 | 765,183 | 2,125,762 | 1,843,856
Capital expenditures | [1] | 142,529 | 95,864 | 1,345,783 | 95,864
Goodwill | [1] | 0 | 0 | 0 | 0
Chemical Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) |  | 0 | 12,235,885 | 613,368 | 55,875,179
Net revenue (intersegment) |  | 0 | 0 | 0 | 0
Income (loss) from operations before income taxes (benefit) |  | (698,693) | 3,176,458 | (2,101,059) | 16,441,115
Income tax expense (benefit) |  | (235,706) | 827,560 | 100,311 | 4,207,902
Income (loss) from operations after income taxes (benefit) |  | (462,987) | 2,348,898 | (2,201,370) | 12,233,213
Total assets |  | 175,343,915 | 202,404,825 | 175,343,915 | 202,404,825
Depreciation and amortization |  | 116,549 | 911,235 | 365,183 | 2,848,670
Capital expenditures |  | 0 | 0 | 1,192,963 | 61,235
Goodwill |  | 27,902,709 | 28,920,005 | 27,902,709 | 28,920,005
Natural Gas [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) |  | 0 | 0 | 0 | 0
Net revenue (intersegment) |  | 0 | 0 | 0 | 0
Income (loss) from operations before income taxes (benefit) |  | (32,079) | (33,184) | (113,029) | (90,471)
Income tax expense (benefit) |  | 0 | 0 |  | 0
Income (loss) from operations after income taxes (benefit) |  | (32,079) | (33,184) | (113,029) | (90,471)
Total assets |  | 1,903,319 | 1,815,010 | 1,903,319 | 1,815,010
Depreciation and amortization |  | 0 | 0 | 0 | 0
Capital expenditures |  | 0 | 1,260 | 30,616 | 0
Goodwill |  | 0 | 0 | 0 | 0
Segment Total [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) |  | 343,080 | 23,840,391 | 2,594,941 | 104,160,873
Net revenue (intersegment) |  | 0 | 1,216,406 | 0 | 6,305,642
Income (loss) from operations before income taxes (benefit) |  | (27,711,892) | 5,898,126 | (42,902,511) | 36,055,500
Income tax expense (benefit) |  | (7,181,521) | 1,509,321 | (10,258,508) | 9,152,597
Income (loss) from operations after income taxes (benefit) |  | (20,530,371) | 4,388,805 | (32,644,003) | 26,902,903
Total assets |  | 336,483,442 | 402,529,046 | 336,483,442 | 402,529,046
Depreciation and amortization |  | 4,666,212 | 5,232,714 | 14,177,727 | 16,042,003
Capital expenditures |  | 1,079,127 | 563,760 | 11,412,848 | 623,735
Goodwill |  | 27,902,709 | 28,920,005 | 27,902,709 | 28,920,005
Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenue (external customers) |  | 0 | 0 | 0 | 0
Net revenue (intersegment) |  | 0 | 0 | 0 | 0
Income (loss) from operations before income taxes (benefit) |  | 912,975 | (1,062,874) | 975,007 | (1,924,779)
Income tax expense (benefit) |  | 0 | 0 | 0 | 0
Income (loss) from operations after income taxes (benefit) |  | 912,975 | (1,062,874) | 975,007 | (1,924,779)
Total assets |  | 16,927 | 40,136 | 16,927 | 40,136
Depreciation and amortization |  | 0 | 0 | 0 | 0
Capital expenditures |  | 0 | 0 | 0 | 0
Goodwill |  | $ 0 | $ 0 | $ 0 | $ 0
[1] | Common production overheads, operating and administrative expenses and asset items (mainly cash and certain office equipment) of bromine and crude salt segments in SCHC were split by reference to the average selling price and production volume of respective segment.

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