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Inventories (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Inventory Disclosure [Abstract] |  |
Schedule of Inventories | Inventories consisted of the following:
|  | September 30, 2016 |  |  | December 31, 2015 |
Raw material |  | $ | 66 |  |  | $ | 3 |
Work-in-progress |  |  | 12,352 |  |  |  | 11,096 |
Finished goods |  |  | 646 |  |  |  | 1,021 |
Spare parts |  |  | 40 |  |  |  | 22 |
Total inventory |  |  | 13,104 |  |  |  | 12,142 |
Less: current portion |  |  | 6,168 |  |  |  | 4,181 |
Total inventory, net of current portion |  | $ | 6,936 |  |  | $ | 7,961 |
| Inventories consisted of the following at December 31, 2015 and 2014:
|  | 2015 |  |  | 2014 |
Raw material |  | $ | 3 |  |  | $ | — |
Work-in-progress |  |  | 11,096 |  |  |  | 9,478 |
Finished goods |  |  | 1,021 |  |  |  | 180 |
Spare parts |  |  | 22 |  |  |  | 22 |
Total |  |  | 12,142 |  |  |  | 9,680 |
Less: current portion |  |  | 4,181 |  |  |  | 8,630 |
Inventories, long-term |  | $ | 7,961 |  |  | $ | 1,050 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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