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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Jan. 31, 2022 | Jan. 31, 2021
Operating Loss Carryforwards [Line Items] |  |
Total deferred tax assets | $ 168,924,000 | $ 131,126,000
Unremitted earnings from foreign subsidiaries | 23,100,000 |
Unrecognized tax benefits that would impact effective tax rate | 0 |
Income tax examination, penalties and interest accrued | 0 | 0
Income tax examination, penalties and interest expense | 0 | $ 0
Domestic |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 472,900,000 |
Domestic | Research Tax Credit Carryforward |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforward | 16,600,000 |
State |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 226,600,000 |
State | Research Tax Credit Carryforward |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforward | 11,800,000 |
Foreign |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 800,000 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 + Details
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