Available-for-Sale Securities	6 Months Ended
Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale Securities	3. Available-for-Sale Securities The Company invests in available-for-sale debt securities consisting of money market funds, certificates of deposit, U.S. Treasury securities and U.S. government sponsored enterprise securities. Available-for-sale debt securities are classified as part of either cash and cash equivalents or short-term investments in the condensed balance sheets. Available-for-sale debt securities with maturities of three months or less from the date of purchase have been classified as cash equivalents and were $47.6 million and $71.5 million as of June 30, 2022 and December 31, 2021, respectively. The Company held no available-for-sale debt securities with maturities of more than three months from the date of purchase as of June 30, 2022 and December 31, 2021. As of June 30, 2022, the Company had no securities in a gross unrealized loss position. At each reporting date, the Company performs an evaluation of impairment to determine if any unrealized losses are other-than-temporary. Factors considered in determining whether a loss is other-than-temporary include the length of time and extent to which fair value has been less than the cost basis, the financial condition of the issuer, and the Company’s intent and ability to hold the investment until recovery of its amortized cost basis. The Company intends, and has the ability, to hold any investments in unrealized loss positions until their amortized cost basis has been recovered. The Company determined there were no other-than-temporary declines in the value of any available-for-sale securities as of June 30, 2022. The Company obtains the fair value of its available-for-sale debt securities from a professional pricing service.

Available-for-Sale Securities

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

3. Available-for-Sale Securities

The Company invests in available-for-sale debt securities consisting of money market funds, certificates of deposit, U.S. Treasury securities and U.S. government sponsored enterprise securities. Available-for-sale debt securities are classified as part of either cash and cash equivalents or short-term investments in the condensed balance sheets. Available-for-sale debt securities with

maturities of three months or less from the date of purchase have been classified as cash equivalents and were $47.6 million and $71.5 million as of June 30, 2022 and December 31, 2021, respectively. The Company held no available-for-sale debt securities with maturities of more than three months from the date of purchase as of June 30, 2022 and December 31, 2021.

As of June 30, 2022, the Company had no securities in a gross unrealized loss position. At each reporting date, the Company performs an evaluation of impairment to determine if any unrealized losses are other-than-temporary. Factors considered in determining whether a loss is other-than-temporary include the length of time and extent to which fair value has been less than the cost basis, the financial condition of the issuer, and the Company’s intent and ability to hold the investment until recovery of its amortized cost basis. The Company intends, and has the ability, to hold any investments in unrealized loss positions until their amortized cost basis has been recovered. The Company determined there were no other-than-temporary declines in the value of any available-for-sale securities as of June 30, 2022. The Company obtains the fair value of its available-for-sale debt securities from a professional pricing service.