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Inventory (Tables) | 12 Months Ended
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Dec. 31, 2019
Inventories [Abstract] |
Schedule of Inventory |
|  | 2019 |  |  | 2018 |
Product inventory |  | $ | 468 |  |  | $ | 297 |
Materials and supplies |  | 684 |  |  | 658 |
|  | $ | 1,152 |  |  | $ | 955 |

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