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Note 2 - Stock-based Compensation
6 Months Ended
Jun. 30, 2016
Notes to Financial Statements  
Compensation and Employee Benefit Plans [Text Block]
NOTE 2 - STOCK-BASED COMPENSATION
 
The Company had no unvested stock options outstanding or unrecognized stock-based compensation costs outstanding as of June 30, 2016 and 2015.
 
Stock option activity during the six months ended
June 30 is
as follows:
 
 
           
Weighted-
           
Weighted-
 
           
average
           
average
 
           
Exercise
           
Exercise
 
   
2016
   
Price
   
2015
   
Price
 
                                 
Outstanding, January 1
    31,949     $ 25.03       46,451     $ 27.90  
Expired
    -       -       (3,639 )     37.33  
Exercised
    -       -       (525 )     17.55  
                                 
Outstanding, June 30
    31,949     $ 25.03       42,287     $ 27.19  
                                 
Exercisable, June 30
    31,949     $ 25.03       42,287     $ 27.19