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Accrued Liabilities | 12 Months Ended
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Dec. 31, 2019
Accrued Liabilities [Abstract] |
Accrued Liabilities | Accrued Liabilities Accrued liabilities are comprised of the following:
|  | December 31,
|  | 2018 |  | 2019
Interest on long-term debt |  | $ | 4,225 |  |  | $ | 1,588 |
Vessels’ operating and voyage expenses |  | 1,808 |  |  | 4,223 |
Commissions |  | 139 |  |  | 176 |
Interest on derivatives and other finance expenses |  | 566 |  |  | 511 |
General and administrative expenses |  | 145 |  |  | 97 |
Total |  | $ | 6,883 |  |  | $ | 6,595 |

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