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Fair Value Measurements | 12 Months Ended
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Jan. 31, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements Assets Measured at Fair Value on a Recurring Basis Financial instruments recorded at fair value in the financial statements are categorized as follows: •Level 1: Observable inputs that reflect quoted prices for identical assets or liabilities in active markets. •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 reflecting management's assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. The following table summarizes the assets measured at fair value on a recurring basis as of January 31, 2022 and January 31, 2023 by level within the fair value hierarchy (in thousands):
| January 31, 2022
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 25,878 |  |  | $ | — |  |  | $ | — |  |  | $ | 25,878 |
Certificates of deposit | — |  |  | 15,183 |  |  | — |  |  | 15,183 |
Total cash equivalents | $ | 25,878 |  |  | $ | 15,183 |  |  | $ | — |  |  | $ | 41,061 |
| January 31, 2023
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 8,591 |  |  | $ | — |  |  | $ | — |  |  | $ | 8,591 |
Certificates of deposit | — |  |  | 15,420 |  |  | — |  |  | 15,420 |
Total cash equivalents | $ | 8,591 |  |  | $ | 15,420 |  |  | $ | — |  |  | $ | 24,011 |
During the years ended January 31, 2022 and 2023, the Company had no transfers between levels of the fair value hierarchy of its assets and liabilities measured at fair value. Fair Value of Other Financial Instruments The carrying amounts of certain financial instruments, including cash held in banks, accounts receivable, accounts payable, accrued liabilities, and other liabilities approximate fair value due to their short-term maturities and are excluded from the fair value tables above. See Note 8 "Leases" for fair value measurements related to its lease impairment.

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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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