Paycheck Protection Program Loan	12 Months Ended
Dec. 31, 2021
Paycheck Protection Program Loan.
Paycheck Protection Program Loan	7. Paycheck Protection Program Loan In April 2020, the Company received loan proceeds of $717,000 (“PPP Loan”) under the Paycheck Protection Program (“PPP”). The PPP, established as part of the Coronavirus Aid, Relief and Economic Security Act, provides for loans to qualifying businesses for amounts up to 2.5 times the average monthly payroll expenses of the qualifying business, calculated as provided under the PPP. The PPP Loan was unsecured, evidenced by a promissory note (the “Note”) given by the Company as borrower through its bank, serving as the lender. The interest rate on the Note was 1.0% per annum. In July 2021, the Company received notification of forgiveness of the full loan amount and associated interest from the Small Business Administration. The Company recorded a gain of $0.7 million from the PPP loan extinguishment in the statement of operations during the year ended December 31, 2021.

Paycheck Protection Program Loan

12 Months Ended

Dec. 31, 2021

7. Paycheck Protection Program Loan

In April 2020, the Company received loan proceeds of $717,000 (“PPP Loan”) under the Paycheck Protection Program (“PPP”). The PPP, established as part of the Coronavirus Aid, Relief and Economic Security Act, provides for loans to qualifying businesses for amounts up to 2.5 times the average monthly payroll expenses of the qualifying business, calculated as provided under the PPP. The PPP Loan was unsecured, evidenced by a promissory note (the “Note”) given by the Company as borrower through its bank, serving as the lender. The interest rate on the Note was 1.0% per annum.

In July 2021, the Company received notification of forgiveness of the full loan amount and associated interest from the Small Business Administration. The Company recorded a gain of $0.7 million from the PPP loan extinguishment in the statement of operations during the year ended December 31, 2021.