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SEGMENT REPORTING (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) segment | Dec. 31, 2018 USD ($) MW | Dec. 31, 2018 USD ($) facility | Dec. 31, 2018 USD ($) item | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 3 |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  |  |  |  |  | $ 125,380 | $ 146,785
Net revenues | $ 27,187 | $ 31,445 | $ 36,781 | $ 29,967 | $ 17,768 | $ 29,595 | $ 43,362 | $ 56,060 |  |  |  |  | 125,380 | 146,785
Operating (loss) profit | (12,181) | $ (2,612) | $ (5,736) | $ (4,537) | (6,689) | $ (1,831) | $ (516) | $ 1,603 |  |  |  |  | (25,066) | (7,433)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 9,183 | 8,999
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 2,324 | 6,688
Assets held for sale |  |  |  |  | 580 |  |  |  |  |  |  |  |  | 580
Total Assets | 99,165 |  |  |  | 112,350 |  |  |  | $ 99,165 | $ 99,165 | $ 99,165 | $ 99,165 | 99,165 | 112,350
Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  | (130) |
Net revenues |  |  |  |  |  |  |  |  |  |  |  |  | (130) |
Total Assets | (228,327) |  |  |  | (229,412) |  |  |  | (228,327) | (228,327) | $ (228,327) | $ (228,327) | (228,327) | (229,412)
Towers and Heavy Fabrications |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of facilities | facility |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Number of tower sections |  |  |  |  |  |  |  |  |  |  | 1,650 | 1,650 |  |
Revenues from external customers |  |  |  |  |  |  |  |  |  |  |  |  | 68,773 | 103,389
Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  | 42 |
Net revenues |  |  |  |  |  |  |  |  |  |  |  |  | 68,815 |
Operating (loss) profit |  |  |  |  |  |  |  |  |  |  |  |  | (4,346) | 2,667
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 4,986 | 4,638
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 1,441 | 5,355
Total Assets | 32,866 |  |  |  | 27,958 |  |  |  | 32,866 | $ 32,866 | $ 32,866 | $ 32,866 | 32,866 | 27,958
Towers and Heavy Fabrications | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Power generating capacity of turbines that towers produced annually can support (in megawatts) | MW |  |  |  |  |  |  |  |  |  | 1,100 |  |  |  |
Towers and Heavy Fabrications | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual tower production capacity (in towers) | item |  |  |  |  |  |  |  |  |  |  |  | 550 |  |
Gearing |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  |  |  |  |  | 38,376 | 26,006
Net revenues |  |  |  |  |  |  |  |  |  |  |  |  | 38,376 |
Operating (loss) profit |  |  |  |  |  |  |  |  |  |  |  |  | 51 | (2,632)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 2,255 | 2,430
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 706 | 726
Assets held for sale |  |  |  |  | 560 |  |  |  |  |  |  |  |  | 560
Total Assets | 37,028 |  |  |  | 38,016 |  |  |  | 37,028 | $ 37,028 | 37,028 | $ 37,028 | 37,028 | 38,016
Process Systems |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  |  |  |  |  | 18,231 | 17,390
Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  | 88 |
Net revenues |  |  |  |  |  |  |  |  |  |  |  |  | 18,319 | 17,390
Operating (loss) profit |  |  |  |  |  |  |  |  |  |  |  |  | (16,442) | (2,269)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 1,709 | 1,706
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 31 | 426
Total Assets | 13,731 |  |  |  | 26,442 |  |  |  | 13,731 | 13,731 | 13,731 | 13,731 | 13,731 | 26,442
Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
SEGMENT REPORTING |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating (loss) profit |  |  |  |  |  |  |  |  |  |  |  |  | (4,329) | (5,199)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 233 | 225
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  | 146 | 181
Assets held for sale |  |  |  |  | 20 |  |  |  |  |  |  |  |  | 20
Total Assets | $ 243,867 |  |  |  | $ 249,346 |  |  |  | $ 243,867 | $ 243,867 | $ 243,867 | $ 243,867 | $ 243,867 | $ 249,346

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