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Lines of Credit
6 Months Ended
Jan. 31, 2013
Lines of Credit [Abstract]  
Lines of Credit
7.
Lines of Credit

Unsecured lines of credit are summarized in the following table.

   
January 31,
 2013
   
July 31,
2012
 
           
Cash draws, recorded as lines of credit on the consolidated balance sheet
 
$
6,758,538
   
$
12,309,335
 
Letters of credit
   
1,577,931
     
2,615,415
 
                 
Total amounts drawn under lines of credit 
   
8,336,469
     
14,924,750
 
Remaining amounts available under lines of credit
   
  26,032,531
     
  19,444,250
 
                 
Total approved unsecured lines of credit  
 
$
34,369,000
   
$
34,369,000
 

Contractual interest rates ranged from 2.5% to 3% at January 31, 2013 and 2.5% to 5% at July 31, 2012.  The Company's lenders have reaffirmed the lines of credit within the past twelve months.