Financial Instruments (Tables)

3 Months Ended

Oct. 31, 2011

Financial Instruments [Abstract]

Impact On Accumulated Other Comprehensive Income (Loss) And Earnings From Foreign Exchange Contracts That Qualified As Cash Flow Hedges

	October 31,
	2011			2010
Net carrying amount at beginning of year	$	241		$	(660	)
Cash flow hedges deferred in other comprehensive income		510			(569	)
Cash flow hedges reclassified to income (effective portion)		(333	)		198
Change in deferred taxes		256			130
Net carrying amount at October 31	$	674		$	(901	)