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Note 2 - Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Weighted Average Number of Shares [Table Text Block]
   
2012
   
2011
   
2010
 
                   
Weighted average common shares outstanding
    2,101,490       1,872,582       1,764,743  
                         
Average treasury stock shares
    (189,530 )     (189,530 )     (189,530 )
                         
Weighted average common shares and common stock equivalents used to calculate basic earnings per share
    1,911,960       1,683,052       1,575,213  
                         
Additional common stock equivalents used to calculate diluted earnings per share
    4,972       -       608  
                         
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share
    1,916,932       1,683,052       1,575,821