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Note 6 - Financial Instruments and Fair Value (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
 
 
Description
 
Fair Value Measurements Using Significant Unobservable Inputs
March 31, 2019
 
Long-lived assets held for sale
  $
2,269