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Fair Value of Financial Instruments | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Fair Value of Financial Instruments | 3. Fair Value of Financial Instruments The accounting guidance defines fair value, establishes a consistent framework for measuring fair value and expands disclosure for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis. Fair value is defined as 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 liability. As a basis for considering such assumptions, the accounting guidance establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2—Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability. Level 3—Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). Financial assets measured at fair value on a recurring basis consist of the Company’s cash equivalents and short-term investments. Cash equivalents consisted of money market funds and short-term investments consisted of U.S. treasury securities and certificates of deposit. The Company obtains pricing information from its investment manager and generally determines the fair value of investment securities using standard observable inputs, including reported trades, broker/dealer quotes, and bid and/or offers. The following tables summarize the Company’s assets that require fair value measurements on a recurring basis and their respective input levels based on the fair value hierarchy (in thousands):
|  |  |  |  | Fair Value Measurements Using |
|  |  |  |  | Quoted Prices in |  |  | Significant |  |  | Significant |
|  |  |  |  | Active Markets |  |  | Other |  |  | Unobservable |
|  | December 31, |  |  | for Identical |  |  | Observable |  |  | Inputs |
|  | 2022 |  |  | Assets (Level 1) |  |  | Inputs (Level 2) |  |  | (Level 3) |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 11,916 |  |  | $ | 11,916 |  |  | $ | - |  |  | $ | - |
Total |  | $ | 11,916 |  |  | $ | 11,916 |  |  | $ | - |  |  | $ | - |
|  |  |  |  | Fair Value Measurements Using |
|  |  |  |  | Quoted Prices in |  |  | Significant |  |  | Significant |
|  |  |  |  | Active Markets |  |  | Other |  |  | Unobservable |
|  | December 31, |  |  | for Identical |  |  | Observable |  |  | Inputs |
|  | 2021 |  |  | Assets (Level 1) |  |  | Inputs (Level 2) |  |  | (Level 3) |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 29,121 |  |  | $ | 29,121 |  |  | $ | - |  |  | $ | - |
Certificates of deposit |  |  | 1,224 |  |  |  | 1,224 |  |  |  | - |  |  |  | - |
Total |  | $ | 30,345 |  |  | $ | 30,345 |  |  | $ | - |  |  | $ | - |
U.S. treasury securities and certificates of deposit are valued using Level 1 inputs. Level 1 securities are valued at unadjusted quoted prices in active markets that are observable at the measurement date for identical, unrestricted assets or liabilities. Fair values determined by Level 2 inputs, which utilize data points that are observable such as quoted prices, interest rates and yield curves, require the exercise of judgment and use of estimates, that if changed, could significantly affect the Company’s financial position and results of operations. Investments in agency securities are valued using Level 2 inputs. Level 2 securities are initially valued at the transaction price and subsequently valued and reported utilizing inputs other than quoted prices that are observable either directly or indirectly, such as quotes from third-party pricing vendors. The carrying amounts of the Company’s financial instruments, including cash and cash equivalents, prepaid and other current assets, accounts payable, and accrued liabilities, approximate fair value due to their short maturities. At December 31, 2022 and 2021, the carrying amount of the Company’s notes payable of $9.0 million and $10.2 million, respectively, approximated their fair value as the terms of the notes are consistent with the market terms of transactions with similar profiles (Level 2 inputs). None of the Company’s non-financial assets or liabilities are recorded at fair value on a non-recurring basis. The Company did no t hold any Level 1, 2 or 3 financial liabilities that are recorded at fair value on a recurring basis as of December 31, 2022 or 2021.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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