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Financial Instruments and Fair Value (Tables) | 9 Months Ended
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Oct. 31, 2022
Investments All Other Investments [Abstract] |
Schedule of Fair Value as Available-for-Sale Securities | The debt security investment portfolio consists of commercial paper, debt securities of corporations or corporate bonds, asset-backed securities and U.S. government securities. All of the investments are denominated in United States dollars and reported at fair value as available-for-sale securities in the condensed consolidated balance sheets as follows:
|  | As of October 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
|  | (in thousands) |
Money market funds |  | $ | 13,525 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,525 |
Commercial paper |  |  | 18,161 |  |  |  | — |  |  |  | — |  |  |  | 18,161 |
Corporate bonds |  |  | 21,390 |  |  |  | 1 |  |  |  | (425 | ) |  |  | 20,966 |
Asset-backed securities |  |  | 16,287 |  |  |  | — |  |  |  | (260 | ) |  |  | 16,027 |
U.S. government securities |  |  | 31,402 |  |  |  | — |  |  |  | (359 | ) |  |  | 31,043 |
Total cash equivalents and marketable debt securities |  | $ | 100,765 |  |  | $ | 1 |  |  | $ | (1,044 | ) |  | $ | 99,722 |
|  | As of January 31, 2022 |
|  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
|  | (in thousands) |
Money market funds |  | $ | 20 |  |  | $ | — |  |  | $ | — |  |  | $ | 20 |
Total cash equivalents and marketable debt securities |  | $ | 20 |  |  | $ | — |  |  | $ | — |  |  | $ | 20 |
Schedule of Cash Equivalents and Marketable Debt Securities | As of October 31, 2022, there were no debt securities with unrealized losses for more than twelve months.
|  | As of |
|  | October 31, 2022 |  |  | January 31, 2022 |
|  | (in thousands) |
Included in cash equivalents |  | $ | 13,525 |  |  | $ | 20 |
Included in marketable debt securities |  |  | 86,197 |  |  |  | — |
Total cash equivalents and marketable debt securities |  | $ | 99,722 |  |  | $ | 20 |
Summary of Contractual Maturities of Investments | The contractual maturities of the investments at October 31, 2022 and January 31, 2022 were as follows:
|  | As of |
|  | October 31, 2022 |  |  | January 31, 2022 |
|  | (in thousands) |
Less than one year |  | $ | 54,829 |  |  | $ | 20 |
Due in 1 - 5 years |  |  | 44,893 |  |  |  | — |
Total cash equivalents and marketable debt securities |  | $ | 99,722 |  |  | $ | 20 |
Schedule of Fair Value of Financial Instruments Measured on Recurring Basis | The following tables present the fair value of the financial instruments measured on a recurring basis as of October 31, 2022 and January 31, 2022, respectively:
|  | As of October 31, 2022 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | (in thousands) |
Money market funds |  | $ | 13,525 |  |  | $ | 13,525 |  |  | $ | — |  |  | $ | — |
Commercial paper |  |  | 18,161 |  |  |  | — |  |  |  | 18,161 |  |  |  | — |
Corporate bonds |  |  | 20,966 |  |  |  | — |  |  |  | 20,966 |  |  |  | — |
Asset-backed securities |  |  | 16,027 |  |  |  | — |  |  |  | 16,027 |  |  |  | — |
U.S. government securities |  |  | 31,043 |  |  |  | — |  |  |  | 31,043 |  |  |  | — |
Total cash equivalents and marketable debt securities |  | $ | 99,722 |  |  | $ | 13,525 |  |  | $ | 86,197 |  |  | $ | — |
|  | As of January 31, 2022 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | (in thousands) |
Money market funds |  | $ | 20 |  |  | $ | 20 |  |  | $ | — |  |  | $ | — |
Total cash equivalents and marketable debt securities |  | $ | 20 |  |  | $ | 20 |  |  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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