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Revenue Recognition - Summary of Revenues Disaggregated by Primary Geographic Markets (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 28, 2018 | Apr. 29, 2017
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 31,487 | $ 24,458
United States [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 19,233 | 15,683
Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 7,834 | 6,383
Canada [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 1,445 | 1,176
Asia [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 1,439 | 290
Central and South America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 1,054 | 832
Other [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 482 | $ 94

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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