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Note 3 - Earnings Per Share (Details) (USD $)
3 Months Ended 9 Months Ended 21 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2014
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 61,000 111,050 0 320,200
Antidilutive Securities Excluded from Computation of Earnings Per Share, Weighted Average Exercise Price (in Dollars per share) $ 19.37 $ 19.56   $ 18.33