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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2021
Income Tax Contingency [Line Items] |  |  |
Unrecognized tax benefits that, if recognized, would impact the effective tax rate |  | $ 0 |
Income taxes paid | $ 309,000 | $ 625,000 | $ 836,000
Federal |  |  |
Income Tax Contingency [Line Items] |  |  |
NOLs available to offset future taxable income | 1,166,200,000 |  |
State |  |  |
Income Tax Contingency [Line Items] |  |  |
NOLs available to offset future taxable income | 1,344,700,000 |  |
Foreign |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax credits available to offset future taxable income | 400,000 |  |
Research and Development Tax Credit | Federal |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax credits available to offset future taxable income | 22,800,000 |  |
Research and Development Tax Credit | State |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax credits available to offset future taxable income | $ 8,700,000 |  |

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4297-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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