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Summary of Significant Accounting Policies (Details 7) (USD $)
Sep. 30, 2012
Sep. 30, 2011
Income taxes    
Valuation allowance $ 216,000 $ 42,000
Minnesota
   
Income taxes    
Valuation allowance 42,000  
U.S. federal
   
Income taxes    
Valuation allowance $ 174,000