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Other Current Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Other Liabilities Disclosure [Abstract]    
Accrued vendor payments $ 6,386 $ 4,510
Accrued ERC payments 9,044 8,909
Accrued underwriter fees 1,500 0
Accrued directors and officers insurance 2,518 0
Accrued employee-related expenses 7,751 6,473
Accrued engine expenses 4 1,139
Accrued tax expenses 746 526
Accrued interest 569 92
Other 187 128
Total other current liabilities $ 28,705 $ 21,777