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Consolidated Balance Sheets (Parentheticals) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Allowance for doubtful accounts (in Dollars) $ 89,981 $ 73,970
Preferred stock, shares authorized 1,250,000 1,250,000
Preferred stock - shares issued 0 0
Preferred stock - shares outstanding 0 0
Preferred stock - no par value (in Dollars per share) $ 0 $ 0
Common stock shares authorized 250,000,000 250,000,000
Common stock shares issued 43,576,861 44,322,159
Common stock shares outstanding 43,576,861 44,322,159