Annual report pursuant to Section 13 and 15(d)

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Tables)

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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Tables)
 12 Months Ended
Jul. 31, 2014
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts [Table Text Block]
Year ended
July 31, 		  Description   Balance at
Beginning
of period 		    Charged
to
costs
and expenses 		  Charged
to other
accounts 		  Deductions     Balance at
end of period 		 
                                       
2014   Allowance for doubtful accounts receivable     2,707       3,063         3,628 (1)     2,142  
                                       
2013   Allowance for doubtful accounts receivable     3,273       4,496         5,062 (1)     2,707  
                                       
2012   Allowance for doubtful accounts receivable     3,488       5,104         5,319 (1)     3,273  
                                       
2014   Deferred tax valuation allowance     47,623       1,842                 49,465  
                                       
2013   Deferred tax valuation allowance     41,261       6,362                 47,623  
                                       
2012   Deferred tax valuation allowance     32,920       8,341                 41,261  
(1) Write-off of uncollectible accounts receivable.