Note Payable	9 Months Ended
Sep. 30, 2021
Notes Payable [Abstract]
Note Payable	Note 10. Notes Payable Loan Under the PPP On May 4, 2020, the Company received proceeds of $1.4 million in connection with a promissory note (the “Note”) entered into with Citibank, N.A. (the “Lender”) evidencing an unsecured loan (the “Loan”) under the Paycheck Protection Program ("PPP"). The PPP is a program of the Small Business Administration ("SBA") established under the CARES Act. Under the PPP, the proceeds of the Loan may be used for payroll and certain covered interest payments, lease payments and utility payments (“Qualifying Expenses”). The Company used the entire Loan amount for Qualifying Expenses under the PPP. On May 18, 2021, the Company received notification from the Lender of SBA's approval of the Company's application for loan forgiveness. Accordingly, the Company is not required to repay the loan. The Company has recorded the loan forgiveness as a gain in the accompanying Condensed Consolidated Statements of Operations for the nine months ended September 30, 2021 under the caption Gain on extinguishment of debt.

Note Payable

9 Months Ended

Sep. 30, 2021

Note 10. Notes Payable

Loan Under the PPP

On May 4, 2020, the Company received proceeds of $1.4 million in connection with a promissory note (the “Note”) entered into with Citibank, N.A. (the “Lender”) evidencing an unsecured loan (the “Loan”) under the Paycheck Protection Program ("PPP"). The PPP is a program of the Small Business Administration ("SBA") established under the CARES Act. Under the PPP, the proceeds of the Loan may be used for payroll and certain covered interest payments, lease payments and utility payments (“Qualifying Expenses”). The Company used the entire Loan amount for Qualifying Expenses under the PPP.

On May 18, 2021, the Company received notification from the Lender of SBA's approval of the Company's application for loan forgiveness. Accordingly, the Company is not required to repay the loan. The Company has recorded the loan forgiveness as a gain in the accompanying Condensed Consolidated Statements of Operations for the nine months ended September 30, 2021 under the caption Gain on extinguishment of debt.