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Note 2 - Summary of Significant Accounting Policies (Detail) - Schedule of earnings per share, basic and diluted (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Net income (in Dollars) $ 5,433,883 $ 5,365,165
Weighted average shares outstanding – basic 18,530,591 14,506,915
Effect of dilutive securities:    
Unexercised warrants 150,857 190,291
Weighted average shares outstanding – diluted 18,681,448 14,697,206
Earnings (loss) per share – basic (in Dollars per share) $ 0.29 $ 0.37
Earnings (loss) per share – diluted (in Dollars per share) $ 0.29 $ 0.37