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Revenue Recognition - Summary of Revenues Disaggregated by Primary Geographic Markets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Total Revenue	$ 28,017	$ 33,318	$ 86,595	$ 102,967
United States [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	16,788	21,831	54,442	64,471
Europe [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	7,081	7,059	20,845	22,408
Canada [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,273	1,441	4,154	4,346
Central and South America [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,233	1,019	3,101	3,232
Asia [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,209	1,396	3,050	7,063
Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	$ 433	$ 572	$ 1,003	$ 1,447

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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