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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value Hierarchy for Assets
The following table presents our fair value hierarchy for assets measured at fair value on a recurring basis as of December 31, 2021 and 2020 (in thousands):
 Fair value as of December 31, 2021
 TotalLevel 1Level 2Level 3
Assets:
Cash equivalents (money market funds)$57,905 $57,905 $— $— 
$57,905 $57,905 $— $— 
 
 Fair value as of December 31, 2020
 TotalLevel 1Level 2Level 3
Assets:
Cash equivalents (money market funds)$26,901 $26,901 $— $— 
$26,901 $26,901 $— $—