Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Apr. 16, 2021
Mar. 31, 2022
Debt Disclosure [Abstract]    
Loan and security agreement, description the Company entered into a Loan and Security Agreement (the “Loan Agreement”) with Hercules Capital, Inc. (“Hercules”), with respect to a venture debt facility. Under the Loan Agreement, Hercules provided the Company with access to a term loan with an aggregate principal amount of up to $30,000 (the “Term Loan Facility”), available in three tranches, subject to certain terms and conditions. The first tranche of $15,000 was advanced to the Company on the date the Loan Agreement was executed. Upon the occurrence of specified milestones and continuing through December 31, 2022, a loan in the aggregate principal amount of up to $10,000, or the second tranche, and upon the occurrence of specified milestones and continuing through September 30, 2023, a loan in the aggregate principal amount of up to $5,000, or the third tranche, may become available. The milestones for the remaining tranches have not yet been reached as of March 31, 2022. The Company is required to make interest only payments through March 1, 2023, or extended to September 1, 2023 upon satisfaction of certain milestones, and is required to then repay the principal balance and interest in equal monthly installments through September 1, 2025.  
Loan agreement, description   (a) 3.0 % of amounts prepaid, if such prepayment occurs during the first 12 months following the Closing Date; (b) 2.0% after 12 months but prior to 24 months; (c) 1.0% after 24 months but prior to 36 months, and (d) no charge after 36 months. Upon prepayment or repayment of all or any of the term loans under the Term Loan Facility, the Company is required to pay an end of term charge (“End of Term Charge”) equal to 6.55% of the total aggregate amount of the term loans being prepaid or repaid.
Interest and prime rate, description   (i) the Prime Rate as reported in The Wall Street Journal plus 5.70% and (ii) 8.95%.
Prime rate   3.25%
Effective interest rate   13.73%
Principal outstanding amount   $ 15,000
Debt discount and issuance costs   775
Interest expense   983
Interest expense the term loan amount   461
Maximum aggregate amount   2,000
Cash   $ 5,000