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Accrued Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2021
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities | The Company’s accrued liabilities consisted of the following (in thousands):
| March 31, 2021 |  | December 31, 2020
Compensation and benefits | $ | 1,957 |  |  | $ | 1,745 |
Professional fees | 390 |  |  | 408 |
LNG fuel and transportation | 2,016 |  |  | 1,151 |
Accrued interest | 31 |  |  | 21 |
Contract liabilities | 44 |  |  | 357 |
Other taxes payable | 454 |  |  | 328 |
Other accrued liabilities | 340 |  |  | 351 |
Total accrued liabilities | $ | 5,232 |  |  | $ | 4,361 |

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