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Note 3 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Weighted Average Number of Shares [Table Text Block]
   

For the Three

 
   

Months Ended

 
   

March 31,

 
   

2015

   

2014

 

Weighted-average common shares outstanding

    2,243,190       2,223,010  
                 
Average treasury stock shares     (189,530 )     (189,530 )
                 

Weighted-average common shares and common stock equivalents used to calculate basic earnings per share

    2,053,660       2,033,480  
                 

Additional common stock equivalents (stock options) used to calculate diluted earnings per share

    9,207       6,035  
                 

Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share

    2,062,867       2,039,515