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Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (1,967,000)	$ 0	$ (1,927,000)	$ 0
Unrecognized tax benefits	8,800,000		8,800,000
Interest expense or penalties related to unrecognized tax benefits			0
Deferred tax assets valuation allowance	$ 2,000,000.0		$ 2,000,000.0

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ 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 (c)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

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Amount of unrecognized tax benefits.

+ References

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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