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Supplemental Disclosure of Cash Flow Information:
12 Months Ended
Jul. 31, 2011
Supplemental Cash Flow Elements [Abstract]  
Cash Flow, Supplemental Disclosures [Text Block]
Note 18 - Supplemental Disclosure of Cash Flow Information:
 
   
For the Years Ended July 31,
 
   
2011
  
2010
  
2009
 
Cash paid during the year for:
         
Interest
 $208,906  $210,082  $1,075,889 
Income taxes
 $  $  $ 
 
Disclosure of non-cash investing and financing activities:
 
Year Ended July 31, 2011
   
Issuance of common stock as payment of dividends on preferred stock
 $347,760 
Issuance of common stock as satisfaction of accounts payable and accrued expenses
 $1,110,867 
      
Year Ended July 31, 2010
    
Issuance of common stock in satisfaction of accounts payable and accrued expenses
 $3,012,595 
Par value of common stock issued in conjunction with cashless exercise of warrants
 $7,636 
      
Year Ended July 31, 2009
    
Issuance of common stock as repayment of convertible debentures
 $16,112,399 
Par value of common stock issued in conjunction with cashless exercise of warrants
 $9,909 
Purchase of property and equipment through the issuance of obligations under capital lease
 $83,002 
Issuance of common stock as satisfaction of accounts payable and accrued expenses
 $438,697