Note 8—Paycheck Protection Program Promissory Note

In May 2020, the Company entered into a $2.0 million Paycheck Protection Program Promissory Note and Agreement (“PPP Promissory Note”) with a commercial bank under the Coronavirus Aid, Relief, and Economic Security Act, or CARES Act. The PPP Promissory Note bears interest at 1.0% per annum. Under the terms of the PPP Promissory Note, payments would have been due monthly beginning November 1, 2020 and the principal amount of the PPP Promissory Note along with any unpaid interest would be due on May 3, 2022. On June 5, 2020, the Paycheck Protection Program Flexibility Act of 2020 (the “PPPFA”) extended the deferral period for all loans to 10 months after the last day of the covered period. Under the revised terms, payments are due beginning August 2021 and the principal amount along with unpaid interest is due in May 2022. The Company has requested from its lender an extension of the loan maturity from two years to five years as permitted under the PPPFA. The principal and interest may be forgiven if the proceeds are used for forgivable purposes as defined by the terms in the PPP Promissory Note, and the Company believes it has used the proceeds from the PPP Promissory Note for forgivable purposes as defined by the terms of the PPP Promissory Note. The Company applied for forgiveness under the provisions of the CARES Act in March 2021. Forgiveness is subject to the sole approval of the Small Business Administration. Interest expense for the three months ended March 31, 2021 was $5,000.