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Cash and cash equivalents and Restricted cash (Tables) | 6 Months Ended
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Jun. 30, 2018
Cash and cash equivalents [abstract] |
Cash and cash equivalents and Restricted cash |
| June 30, 2018 | December 31, 2017
Cash on hand | 39 | -
Cash at banks | 1,549 | 2,756
Total | 1,588 | 2,756

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