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Business Segment, Geographic and Major Customer Information (Tables) | 12 Months Ended
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Dec. 31, 2019
Segment Reporting [Abstract] |
Financial information regarding reportable segments | Summarized financial information of the reportable segments is as follows (in thousands):
As of and for the years ended December 31, |  | Energy Chemistry Technologies |  | Corporate and Other |  | Total
2019 |  |  |  |  |  |
Net revenue from external customers |  | $ | 119,353 |  |  | $ | — |  |  | $ | 119,353 |
Loss from operations |  | (46,485 | ) |  | (30,140 | ) |  | (76,625 | )
Depreciation and amortization |  | 7,439 |  |  | 1,026 |  |  | 8,465 |
Capital expenditures |  | 2,411 |  |  | — |  |  | 2,411 |
2018 |  |  |  |  |  |
Net revenue from external customers |  | $ | 177,773 |  |  | $ | — |  |  | $ | 177,773 |
Income (loss) from operations |  | (36,817 | ) |  | (32,994 | ) |  | (69,811 | )
Depreciation and amortization |  | 7,107 |  |  | 2,109 |  |  | 9,216 |
Capital expenditures |  | 2,733 |  |  | 826 |  |  | 3,559 |
2017 |  |  |  |  |  |
Net revenue from external customers |  | $ | 243,106 |  |  | $ | — |  |  | $ | 243,106 |
Income (loss) from operations |  | 33,611 |  |  | (43,931 | ) |  | (10,320 | )
Depreciation and amortization |  | 7,323 |  |  | 2,445 |  |  | 9,768 |
Capital expenditures |  | 3,279 |  |  | 918 |  |  | 4,197 |
Assets of the Company by reportable segments are as follows (in thousands):
| December 31, 2019 |  | December 31, 2018
Energy Chemistry Technologies | $ | 117,357 |  |  | $ | 139,205 |
Corporate and Other | 114,490 |  |  | 28,208 |
Total segments | 231,847 |  |  | 167,413 |
Held for sale | — |  |  | 118,470 |
Total assets | $ | 231,847 |  |  | $ | 285,883 |
Revenue by geographic location | Revenue by geographic location is as follows (in thousands):
| Years ended December 31,
| 2019 |  | 2018 |  | 2017
U.S. | $ | 104,786 |  |  | $ | 146,421 |  |  | $ | 219,517 |
Other countries | 14,567 |  |  | 31,352 |  |  | 23,589 |
Total | $ | 119,353 |  |  | $ | 177,773 |  |  | $ | 243,106 |
Revenue by major customers | Revenue from major customers, as a percentage of consolidated revenue, is as follows:
| Years ended December 31,
| 2019 |  | 2018 |  | 2017
Customer A | 20.4% |  | * |  | *
Customer B | 10.3% |  | 12.23% |  | *
Customer C | * |  | 10.1% |  | *
Customer D | * |  | * |  | 16.7%

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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599 + Details
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