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Prepaid and Other Current Assets
 12 Months Ended
Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]  
Prepaid and Other Current Assets Prepaid and Other Current Assets
The following table sets forth the components of the Company’s prepaid and other current assets (in thousands) as of:

December 31,
20222021
Prepaid insurance$911 $805 
Interest receivable514 1,530 
Prepaid engineering— 409 
Prepaid feedstock, current1,097 — 
Prepaid other512 863 
Total Prepaid and other current assets$3,034 $3,607