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Debt (Tables)
6 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
June 30,
2021
December 31,
2020
PPP loan$6,927 $6,927 
     Total long-term debt6,927 6,927 
Less amounts classified as current6,927 4,992 
Long-term debt, excluding current portion$— $1,935