Segment Information, Significant Customers and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Parenthetical) (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Apr. 30, 2018 |
Apr. 30, 2017 |
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Segment Reporting Information [Line Items] | ||
Total revenues | $ 14,935 | $ 16,667 |
United States Revenue [Member] | ||
Segment Reporting Information [Line Items] | ||
Total revenues | $ 5,787 | $ 7,028 |
Total Revenues [Member] | Customer Concentration Risk [Member] | United States Revenue [Member] | ||
Segment Reporting Information [Line Items] | ||
% of total revenues | 38.70% | 42.20% |
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- Definition 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/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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