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Business Segments (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) segment | Sep. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of operating segments | segment |  |  | 2 |  |
Total revenues | $ 10,514 | $ 8,001 | $ 34,584 | $ 26,566 |
Operating Income (Loss) | (3,254) | (2,015) | (4,180) | (5,196) |
Depreciation | 2,307 | 2,190 | 6,892 | 6,573 |
Income from equity investments in foreign joint ventures | 187 | 0 | 187 | 0 |
Assets | 91,448 |  | 91,448 |  | $ 74,705
LNG |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 9,143 | 8,001 | 33,213 | 26,566 |
Operating Income (Loss) | (2,988) | (2,015) | (3,914) | (5,196) |
Depreciation | 2,277 | 2,190 | 6,862 | 6,573 |
Income from equity investments in foreign joint ventures | 0 | 0 | 0 | 0 |
Assets | 77,866 |  | 77,866 |  | 74,705
Power Delivery |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 1,371 | 0 | 1,371 | 0 |
Operating Income (Loss) | (266) | 0 | (266) | 0 |
Depreciation | 30 | 0 | 30 | 0 |
Income from equity investments in foreign joint ventures | 187 | $ 0 | 187 | $ 0 |
Assets | $ 13,582 |  | $ 13,582 |  | $ 0

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