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Note 7 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]
   
Three Months Ended
March 31,
 
   
2013
   
2012
 
Basic weighted average shares outstanding
    19,421,603       19,302,603  
Effect of dilutive securities
    1,322,978       997,401  
Diluted weighted average shares outstanding
    20,744,581       20,300,004