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Stock Warrants (Details) - USD ($)
Jul. 31, 2013
Dec. 31, 2008
Class of Warrant or Right [Line Items]    
Payments for Repurchase of Warrants $ 50,000  
Adjustments to Additional Paid in Capital, Warrant Repurchased $ 350,000  
US Department of Treasury Capital Purchase Program [Member]    
Class of Warrant or Right [Line Items]    
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right   137,966