Business and Summary of Significant Accounting Policies - Concentration of Credit Risk and Significant Customers (Details) $ in Thousands	12 Months Ended
Jan. 30, 2021 USD ($) customer	Feb. 01, 2020 USD ($)
Cash and cash equivalents
Cash and cash equivalents	$ 66,013	$ 52,460
Money Market Funds
Cash and cash equivalents
Cash and cash equivalents	$ 59,000	$ 45,000
Accounts receivable \| Credit concentration risk
Concentration of Credit Risk and Significant Customers
Number of customers \| customer	3
Accounts receivable \| Credit concentration risk \| Customer One, Two and Three
Concentration of Credit Risk and Significant Customers
Concentration risk, percentage	54.00%
Accounts receivable \| Credit concentration risk \| Minimum \| Customer One
Concentration of Credit Risk and Significant Customers
Concentration risk, percentage	10.00%
Accounts receivable \| Credit concentration risk \| Minimum \| Customer Two
Concentration of Credit Risk and Significant Customers
Concentration risk, percentage	10.00%
Accounts receivable \| Credit concentration risk \| Minimum \| Customer Three
Concentration of Credit Risk and Significant Customers
Concentration risk, percentage	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration