Other Accrued Liabilities (Tables)
 9 Months Ended
Apr. 30, 2013
Other Accrued Liabilities [Abstract]  
Other Accrued Liabilities
Other accrued liabilities are summarized in the following table.

 
 
April 30,
2013
  
July 31,
2012
 
 
 
  
 
Allowance for project disallowances
 
$
2,746,974
  
$
2,724,474
 
Other
  
1,158,775
   
1,208,114
 
 
        
Total other accrued liabilities
 
$
3,905,749
  
$
3,932,588