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Note 9 - Basic And Diluted Earnings Per Common Share: (Detail) - The following table is a summary of the basic and diluted earnings per common share: (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Net income for the period (in Dollars) $ 695,998 $ 565,659 $ 2,359,617 $ 1,293,605
Basic weighted average number of common shares outstanding 45,912,458 53,444,841 47,003,016 53,441,276
Effect of outstanding stock options (in Dollars) $ 3,536,972 $ 2,354,594 $ 3,200,147 $ 2,343,722
Diluted weighted average number of shares outstanding 49,449,430 55,796,435 50,203,163 55,784,998
Basic earnings per common share (in Dollars per share) $ 0.02 $ 0.01 $ 0.05 $ 0.02
Diluted earnings per common share (in Dollars per share) $ 0.01 $ 0.01 $ 0.05 $ 0.02