Earnings per Share - Potential Common Stock Equivalents Excluded From Computation of Diluted Earning Per Share (Details) - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	134	324	172	404
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	3,676	819	3,676	804
Range of exercise prices of such options, minimum	$ 0.53	$ 1.85	$ 0.53	$ 2.25
Range of exercise prices of such options, maximum	$ 7.02	$ 7.02	$ 7.02	$ 7.02
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	833	1,242	833	679
Restricted and deferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	191	114	191	114

Antidilutive securities excluded from computation of earnings per share exercise price range lower limit.

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- Definition

Antidilutive securities excluded from computation of earnings per share exercise price range upper limit.

+ References

No definition available.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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