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Consolidated Balance Sheets (Parentheticals) (USD $)
Dec. 31, 2011
Dec. 31, 2010
Allowance for doubtful accounts (in Dollars) $ 57,415 $ 65,000
Preferred stock - no par value (in Dollars per share) $ 0 $ 0
Preferred stock - shares authorized 1,250,000 1,250,000
Preferred stock - shares issued 0 0
Preferred stock - shares outstanding 0 0
Common stock shares authorized 250,000,000 250,000,000
Common stock shares issued 53,497,584 53,448,591
Common stock shares outstanding 53,497,584 53,448,591
Common stock - no par value (in Dollars per share) $ 0 $ 0