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Note 3 - Net Income Per Common Share (Details) (Equity Option [Member])
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2013
Equity Option [Member]
     
Note 3 - Net Income Per Common Share (Details) [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 116,550 256,375 256,375