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Segment Information, Significant Customers and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jul. 31, 2014
|
Jul. 31, 2013
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Jul. 31, 2014
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Jul. 31, 2013
|
|
| Segment Reporting Information [Line Items] | ||||
| Total revenues | $ 29,849 | $ 37,380 | $ 54,186 | $ 72,932 |
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North America [Member]
|
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| Segment Reporting Information [Line Items] | ||||
| Total revenues | 18,855 | 22,957 | 33,497 | 39,560 |
|
Europe and Middle East [Member]
|
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| Segment Reporting Information [Line Items] | ||||
| Total revenues | 9,001 | 11,400 | 16,698 | 26,338 |
|
Latin America [Member]
|
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| Segment Reporting Information [Line Items] | ||||
| Total revenues | 1,529 | 1,969 | 3,178 | 5,096 |
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Asia Pacific and Other International Locations [Member]
|
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| Segment Reporting Information [Line Items] | ||||
| Total revenues | $ 464 | $ 1,054 | $ 813 | $ 1,938 |
|
Sales [Member] | North America [Member]
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| Segment Reporting Information [Line Items] | ||||
| % of total revenue | 63.00% | 62.00% | 62.00% | 54.00% |
|
Sales [Member] | Europe and Middle East [Member]
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| Segment Reporting Information [Line Items] | ||||
| % of total revenue | 30.00% | 30.00% | 31.00% | 36.00% |
|
Sales [Member] | Latin America [Member]
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| Segment Reporting Information [Line Items] | ||||
| % of total revenue | 5.00% | 5.00% | 6.00% | 7.00% |
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Sales [Member] | Asia Pacific and Other International Locations [Member]
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| Segment Reporting Information [Line Items] | ||||
| % of total revenue | 2.00% | 3.00% | 1.00% | 3.00% |