Fair Value Measurements - Additional Information (Detail) - USD ($) |
Jan. 31, 2022 |
Jan. 31, 2021 |
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| Fair Value Measurements Disclosure [Line Items] | ||
| Marketable securities | $ 252,000 | |
| Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | ||
| Fair Value Measurements Disclosure [Line Items] | ||
| Cash equivalents | $ 0 | 46,000 |
| Marketable securities | 0 | 252,000 |
| Fair Value, Inputs, Level 3 [Member] | ||
| Fair Value Measurements Disclosure [Line Items] | ||
| Fair value measurements of our financial assets | $ 0 | $ 0 |
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- Definition Fair Value Measurements Disclosure [Line Items] No definition available.
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. No definition available.
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