Stock-Based Compensation - Shares Purchased (Details) - $ / shares	3 Months Ended	9 Months Ended
Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Share-based Payment Arrangement [Abstract]
Shares purchased (in shares)	4,605	5,652	33,506	21,205
Average price per share (in dollars per share)	$ 17.66	$ 15.73	$ 10.21	$ 13.99
Weighed average fair value at grant date (in dollars per share)	$ 4.99	$ 4.16	$ 3.71	$ 3.96

Number of shares issued during the period as a result of an employee stock purchase plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Name:	us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration