Income Taxes - Components of Deferred Income Taxes (Detail) - USD ($) $ in Thousands |
Jan. 31, 2021 |
Jan. 31, 2020 |
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| Deferred tax assets: | ||
| Accruals and reserves | $ 448 | $ 545 |
| Deferred revenue | 350 | 274 |
| Stock-based compensation expense | 499 | 503 |
| U.S. federal, state and foreign tax credits | 7,737 | 7,929 |
| Property and equipment | 118 | 119 |
| Loss carryforwards | 34,518 | 29,373 |
| Deferred tax assets | 43,670 | 38,743 |
| Less: Valuation allowance | (43,439) | (38,248) |
| Deferred tax liabilities | 231 | 495 |
| Deferred tax liabilities: | ||
| Other | 46 | |
| Intangible assets | $ 231 | $ 449 |
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- Definition Deferred tax liabilities gross. No definition available.
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- References No definition available.
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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