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Inventories (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Inventories [Abstract] |
Inventories |
| December 31,
| 2017 | 2016
Lubricants | 328 | 363
Gas cylinders | 63 | 52
Bunkers | 270 | 101
Total | 661 | 516

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