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Other Accrued Liabilities (Tables)
 6 Months Ended
Jan. 31, 2013
Other Accrued Liabilities [Abstract]  
Other Accrued Liabilities
Other accrued liabilities are summarized in the following table.

January 31,
 2013
July 31,
2012
 
 
Allowance for contract adjustments
$
2,724,474
$
2,724,474
Other
944,326
1,208,114
Total other accrued liabilities  
$
3,668,800
$
3,932,588