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Other income (expense)	12 Months Ended
Other income (expense)	Jul. 31, 2012
Other income (expense)	14. Other income (expense): Other income (expense) consists primarily of interest income on cash equivalents, gains on sale of other investments, and foreign exchange gains (losses). The Company had foreign exchange gains (losses) totaling $668, ($678) and ($612) in fiscal years 2012, 2011 and 2010, respectively.