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Significant Customers and Geographic Information (Details)
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3 Months Ended | |
|---|---|---|
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Apr. 30, 2013
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Apr. 30, 2012
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Customer A [Member]
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| Entity-Wide Revenue, Major Customer, Percentage | 18.00% | 16.00% |
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Customer B [Member]
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| Entity-Wide Revenue, Major Customer, Percentage | 15.00% | 11.00% |
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Customer C [Member]
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| Entity-Wide Revenue, Major Customer, Percentage | 14.00% | |
| X | ||||||||||
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- Definition
Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. No definition available.
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