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Note 11 - Share Based Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
All Stock Options Outstanding
 
   
 
Shares
   
Weighted Average
Exercise Price
 
Options outstanding as of December 31, 2011
    916,594     $ 4.24  
Options granted
    20,000     $ 5.40  
Options exercised
    (63,700 )   $ 4.86  
Options forfeited/cancelled
    (24,050 )   $ 3.98  
                 
Options outstanding as of June 30, 2012
    848,844     $ 4.23  
                 
Options outstanding price range at June 30, 2012
  $ 1.73 - $9.81          
                 
Options exercisable as of June 30, 2012
    710,400     $ 4.57  
                 
Intrinsic value of outstanding stock options as of June 30, 2012
  $ 1,259          
                 
Intrinsic value of stock options exercised for the twenty-six week period ended June 30, 2012
  $ 44