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Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Prepaid expenses and other current assets |  |
Prepaid LNG | $ 86 | $ 90
Prepaid insurance | 403 | 734
Prepaid supplier expenses | 276 | 299
Other receivables | 2,242 | 1,521
Deposits | 335 | 285
Other | 222 | 182
Total prepaid expenses and other current assets | $ 3,564 | $ 3,111

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