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Note 10 - Stock-Based Employee Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   
For the three-month period
Ended June 30,
   
For the six-month period
Ended June 30,
 
   
2012
   
2011
   
2012
   
2011
 
Fair value of options granted
   
     
    $ 6.06      
 
Dividend yield
 
%    
%  
%  
%
Expected volatility
 
%  
%     47 %  
%
Risk free interest rate
 
%  
%     2 %  
%
Expected term in years
   
     
      10      
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Number of shares of Common Stock underlying options
   
Weighted Average Exercise Price
 
Options outstanding at December 31, 2011
    164,543     $ 7.55  
Granted – stock options
    51,569     $ 8.10  
Granted – stock awards
    112,034     $ 8.10  
Exercised – stock options
    (17,585 )   $ 2.94  
Exercised – stock awards
    (112,034 )   $ 8.10  
Canceled
    (6,287 )   $ 4.79  
                 
Options outstanding at June 30, 2012
    192,240     $ 8.21  
                 
Options exercisable at:
               
December 31, 2011
    119,948     $ 7.37  
June 30, 2012
    113,020     $ 8.32