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Note 12 - Contingent Liabilities and Commitments (Details) (USD $)
1 Months Ended 9 Months Ended
Apr. 30, 2012
Sep. 30, 2012
Apr. 30, 2013
Jul. 31, 2011
sqft
Commitments and Contingencies Disclosure [Abstract]        
Area of Real Estate Property (in Square Feet)       10,870
Lease Term   66 months    
Number of Months in Which Free Rent is Provided   6 months    
Payments for Rent $ 23,000      
Letter of Credit Required by Lease, Face Amount   250,000    
Reduction Amount on Letter of Credit Required by Lease   50,000 50,000  
Lette of Credit Amount Remaining Until Lease Term Expires   100,000    
Reduction of Escrow Deposit     $ 50,000