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Note 1 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Schedule of Weighted Average Number of Shares [Table Text Block]
   

2013

   

2012

   

2011

 

Average number of common shares outstanding

    6,947,974       6,942,411       6,936,869  

Effect of dilutive options

    20,419       17,456       13,994  

Average number of common shares outstanding used to calculate diluted earnings per common share

    6,968,393       6,959,867       6,950,863