XML 49 R36.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 9 - Dividends and Dividend Equivalents (Tables)
 12 Months Ended
Dec. 31, 2015
Dividends And Dividend Equivalents [Abstract]  
Schedule of Dividends Payable [Table Text Block]
   

Dividend Declared

per Share

    

Total

Amount

  

2015:

                

First quarter

   $ 0.20     $ 7,854  

Second quarter

  $ 0.20     $ 7,925  

Third quarter

  $ 0.20     $ 7,901  

Fourth quarter

   $ 0.20     $ 7,938  
                 

2014:

                

Second quarter

  $ 0.15     $ 5,817  

Third quarter

  $ 0.15     $ 5,823  

Fourth quarter

   $ 0.15     $ 5,826