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Segment Information, Significant Customers and Georgraphic Information (Details Textual) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Jan. 31, 2013
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Jan. 31, 2012
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Jan. 31, 2011
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| Total revenue | $ 157,188 | $ 164,792 | $ 173,655 |
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United States [Member]
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| Total revenue | $ 85,300 | $ 97,700 | $ 108,600 |
| X | ||||||||||
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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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