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Note 9 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Operating Leases of Lessee Disclosure [Table Text Block]
   

Amount

 

Years ended December 31:

       

2014

  $ 11,482  

2015

    9,630  

2016

    6,933  

2017

    5,733  

2018

    4,331  

Thereafter

    4,136  

Total

  $ 42,245