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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability. A three-tier fair value hierarchy is established as a basis for considering such assumptions and for inputs used in the valuation methodologies in measuring fair value: Level 1 Quoted prices in active markets for identical assets or liabilities. Level 2 Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The Company utilizes the market approach to measure fair value for its financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The following table summarizes the Company’s financial assets (cash equivalents and marketable securities) at fair value as of December 31, 2023 (in thousands):
| Fair Value as of December 31, 2023 |  | Basis for Fair Value Measurements
|  | (Level 1) |  | (Level 2) |  | (Level 3)
Assets: |  |  |  |  |  |  |
Money market funds, included in cash and cash equivalents | $ | 16,125 |  |  | $ | 16,125 |  |  | $ | — |  |  | $ | — |
Fixed income mutual funds, included in short-term investments | 48,396 |  |  | 48,396 |  |  | — |  |  | — |
Total | $ | 64,521 |  |  | $ | 64,521 |  |  | $ | — |  |  | $ | — |
The following table summarizes the Company’s financial assets (cash equivalents and marketable securities) at fair value as of December 31, 2022 (in thousands):
| Fair Value as of December 31, 2022 |  | Basis for Fair Value Measurements
|  | (Level 1) |  | (Level 2) |  | (Level 3)
Assets: |  |  |  |  |  |  |
Money market funds, included in cash and cash equivalents | $ | 6,075 |  |  | $ | 6,075 |  |  | $ | — |  |  | $ | — |
Fixed income mutual funds, included in short-term investments | 70,804 |  |  | 70,804 |  |  | — |  |  | — |
Total | $ | 76,879 |  |  | $ | 76,879 |  |  | $ | — |  |  | $ | — |
There were no liabilities measured at fair value on a recurring and non-recurring basis as of December 31, 2023 and December 31, 2022. The money market funds are highly liquid and primarily invest in short-term fixed income securities issued by the U.S. government and U.S. government agencies. The Company’s available-for-sale investment comprises a short-term investment in a fixed income mutual fund, which primarily invests in debt securities issued by the U.S. government and U.S. government agencies and corporate bonds and notes. Interest income from short-term investment is recorded in interest income. As of December 31, 2022, the Company’s short-term investment had a fair value of $70.8 million, a cost basis of $71.9 million, and an unrealized loss of $1.1 million, which was recorded in accumulated other comprehensive loss. During the year ended December 31, 2023, the Company recognized $1.0 million in unrealized gains from its short-term investment. As of December 31, 2023, the Company’s short-term investment had a cumulative unrealized net loss of $0.1 million, which included an adjustment of $1.1 million unrealized loss recorded in other income (expense), net in the year ended December 31, 2023. The adjustment was not material to any previously issued financial statements.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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