v3.20.4

Stock-Based Compensation - Summary of Option Activity (Parenthetical) (Detail)	9 Months Ended
	Oct. 31, 2020 $ / shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Non-vested, Weighted average grant-date fair value	$ 0.81

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- References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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