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Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Prepaid expenses and other current assets |  |
Prepaid LNG | $ 93 | $ 90
Prepaid insurance | 501 | 734
Prepaid supplier expenses | 311 | 299
Other receivables | 1,969 | 1,521
Deposits | 310 | 285
Other | 152 | 182
Prepaid expenses and other current expenses | $ 3,336 | $ 3,111

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