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Funding Arrangements
12 Months Ended
Dec. 31, 2021
Research and Development [Abstract]  
Funding Arrangements . Funding Arrangements

SBIR Grant

In June 2017, the Company was awarded a Small Business Innovation Research (“SBIR”) grant by the National Institute of Health (“NIH”) in the amount of $3.0 million. This grant was effective from September 15, 2017 to June 30, 2020 and in April 2020, the Company received an extension through June 30, 2021. The grant was funded on an ongoing basis based on periodic reports of qualifying expenditures reported by the Company to NIH. Under this grant, the Company received proceeds of $0 and $0.9 million during the years ended December 31, 2021 and 2020, respectively. The Company recognized income of $0 and $0.6 million on expenses incurred during the years ended December 31, 2021 and 2020, respectively. At December 31, 2020, the Company had received the full amount awarded under the SBIR grant. The grant was not extended past June 30, 2021 and the Company notified the NIH of grant completion in July 2021.

The SBIR grant does not fall within the scope of ASC 606 as NIH does not meet the definition of a customer, and the grant from NIH was given for the benefit of public health rather than for monetary compensation. Accordingly, funding received under this grant is recognized in “Other income (loss), net” in the consolidated statements of operations and comprehensive loss.