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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 consisted of the following (in thousands):
December 31,
20212020
Prepaid expenses$340 $663 
Other current assets480 28 
Prepaid software licenses261 — 
Prepaid expenses and other current assets$1,081 $691