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Notes Payable (Tables)
 6 Months Ended
Jan. 31, 2014
Notes Payable [Abstract]  
Schedule of borrowings on revolving loan agreement
As of January 31, 2014, borrowings on the revolving loan agreement and China credit facility were as follows:
 
 
Interest Rate
 
January 31, 2014
USD-denominated borrowing on revolving loan agreement
 
1.2430
%
 
$
9,000

USD-denominated borrowing on China line of credit
 
1.4800
%
 
14,946

Notes payable
 
1.3615
%
 
$
23,946