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Note 12 - Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

September 30, 2020

  

December 31, 2019

 

(in thousands)

 

Carrying

Amount

  

Fair Value

  

Carrying

Amount

  

Fair Value

 

Cash and Cash Equivalents

 $44,904  $44,904  $21,199  $21,199 

Short-Term Debt

  (48,600)  (48,600)  (6,000)  (6,000)

Long-Term Debt including Current Maturities

  (764,489)  (867,972)  (689,764)  (742,279)