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Note 11 - Components of Net Periodic Benefit Cost (Tables)
3 Months Ended
Mar. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
   

Three Months

Ended March 31,

 
   

2014

   

2013

 
   

(in thousands)

 
                 

Interest cost

  $ 772     $ 720  

Expected return on plan assets

    (777

)

    (726

)

Recognized actuarial loss

    146       228  
                 

Net expense

  $ 141     $ 222