CARES Act Paycheck Protection Program Loan	3 Months Ended
Mar. 31, 2021
Extraordinary And Unusual Items [Abstract]
CARES Act Paycheck Protection Program Loan	5. CARES Act Paycheck Protection Program Loan On April 20, 2020, the Company entered into a loan agreement with Silicon Valley Bank (the “PPP Lender”) under the terms of which the PPP Lender made a loan to the Company in an aggregate principal amount of $1.0 million (the “PPP Loan”) pursuant to the Paycheck Protection Program (the “PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”). The PPP Loan is evidenced by a promissory note (the “Note”) containing the terms and conditions for repayment of the PPP Loan. Under the terms of the Note and the PPP Loan, interest accrued on the outstanding principal amount at the rate of 1.0% per annum. The term of the Note was until April 2022, with the Company obligated to make equal monthly payments of principal and interest, beginning in November 2020 and continuing until the maturity date. The CARES Act and the PPP provide a mechanism for forgiveness of up to the full amount borrowed. On January 11, 2021, the Company was notified by the PPP Lender that the PPP Loan had been forgiven in full, including approximately $7,000 of accrued interest. In accordance with ASC 405-20, Extinguishment of Liabilities, the income from the forgiveness of the amount borrowed and the accrued interest was recognized in the statement of operations in other income as a gain on extinguishment of debt.

CARES Act Paycheck Protection Program Loan

3 Months Ended

Mar. 31, 2021

Extraordinary And Unusual Items [Abstract]

CARES Act Paycheck Protection Program Loan

5. CARES Act Paycheck Protection Program Loan

On April 20, 2020, the Company entered into a loan agreement with Silicon Valley Bank (the “PPP Lender”) under the terms of which the PPP Lender made a loan to the Company in an aggregate principal amount of $1.0 million (the “PPP Loan”) pursuant to the Paycheck Protection Program (the “PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”). The PPP Loan is evidenced by a promissory note (the “Note”) containing the terms and conditions for repayment of the PPP Loan.

Under the terms of the Note and the PPP Loan, interest accrued on the outstanding principal amount at the rate of 1.0% per annum. The term of the Note was until April 2022, with the Company obligated to make equal monthly payments of principal and interest, beginning in November 2020 and continuing until the maturity date.

The CARES Act and the PPP provide a mechanism for forgiveness of up to the full amount borrowed. On January 11, 2021, the Company was notified by the PPP Lender that the PPP Loan had been forgiven in full, including approximately $7,000 of accrued interest. In accordance with ASC 405-20, Extinguishment of Liabilities, the income from the forgiveness of the amount borrowed and the accrued interest was recognized in the statement of operations in other income as a gain on extinguishment of debt.