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Short-Term Investments | 12 Months Ended
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Dec. 31, 2023
Short-Term Investments [Abstract] |
SHORT-TERM INVESTMENTS | 3. SHORT-TERM INVESTMENTS Short-term investments consist of U.S. treasury securities and are classified as available-for-sale. Available-for-sale investments are reported at fair value, with unrealized gains or losses reported in accumulated other comprehensive income. The fair values of our available-for-sale cash and cash equivalents securities are Level 1 measurements, based on quoted prices from active markets for identical assets. The fair values of our available-for-sale short-term investments securities are Level 2 measurements, based on quoted prices from inactive markets for identical assets. The amortized cost, gross unrealized holding gains, gross unrealized holding losses and fair value of our marketable securities by type of security as of December 31, 2023 was as follows:
|  | December 31, 2023 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury and U.S. government securities |  |  | 45,345 |  |  |  | 36 |  |  |  | (26 | ) |  |  | 45,355 |
Total assets |  | $ | 45,345 |  |  | $ | 36 |  |  | $ | (26 | ) |  | $ | 45,355 |
The aggregate fair value of available-for-sale debt securities in an unrealized loss position as of December 31, 2023 was $31,568. We did not have any investments in a continuous unrealized loss position for more than twelve months as of December 31, 2023. As of December 31, 2023, we believe that the cost basis of our available-for-sale debt securities is recoverable. No allowance for credit losses was recorded as of December 31, 2023.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent + Details
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