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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, unless otherwise specified |
12 Months Ended | ||
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Jan. 31, 2014
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Jan. 31, 2013
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Jan. 31, 2012
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| Segment Reporting Information [Line Items] | |||
| Total revenues | $ 146,319 | $ 157,188 | $ 164,792 |
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United States Revenue [Member]
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| Segment Reporting Information [Line Items] | |||
| Total revenues | $ 66,903 | $ 85,256 | $ 97,685 |
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United States Revenue [Member] | Sales [Member]
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| Segment Reporting Information [Line Items] | |||
| % of total revenue | 45.70% | 54.20% | 59.30% |
| X | ||||||||||
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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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- Details
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