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Note 12 - Supplemental Cash Flow Information
3 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Cash Flow, Supplemental Disclosures [Text Block]
12.
Sup
plemental Cash Flow Information
 
   
Three Months Ended
 
   
March 31,
 
   
2020
   
2019
 
   
(in thousands)
 
Cash paid for income taxes, net
  $
526
    $
2,173