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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Schedule of future principal payments for the long-term debt
   September 30,
2021
 
2021 (for the remaining 3 months)   
-
 
2022   
-
 
2023   4,458 
2024   5,804 
2025   4,738 
Total principal payments   15,000 
Unamortized discount and debt issuance costs   (775)
Long-term debt   14,225