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PREPAID EXPENSES AND OTHER CURRENT ASSETS
 12 Months Ended
Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
PREPAID EXPENSES AND OTHER CURRENT ASSETS PREPAID EXPENSES AND OTHER CURRENT ASSETS
Prepaid expenses and other current assets consist of the following as of December 31, 2021 and 2020 (in thousands):
20212020
Insurance$3,482 $107 
Vendor advances1,103 473 
Accounts receivable517 — 
Other259 213 
Total prepaid expenses and other current assets$5,361 $793