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Note 12 - Restructuring Charges (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Restructuring and Related Costs [Table Text Block]
   
Severance
and Benefits
   
Other Charges
   
Total
 
   
(in thousands)
 
                   
Accrual balance at December 31, 2010
  $ 881     $ 350     $ 1,231  
Accrual adjustments
    (36 )     -       (36 )
Cash paid
    (845 )     (350 )     (1,195 )
Accrual balance at December 31, 2011
  $ -     $ -     $ -