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Note 3 - Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

(in thousands)

               

Hedge derivatives

 

June 30, 2021

   

December 31, 2020 (1)

 

Net Fair Value of Derivative

  $ (2,231 )   $ (3,106 )

Quoted Prices in Active Markets (Level 1)

    -       -  

Significant Other Observable Inputs (Level 2)

    (2,231 )     (3,106 )

Significant Unobservable Inputs (Level 3)

    -       -  

Available-for-sale securities

 

June 30, 2021

   

December 31, 2020

 

Fair Value of Securities

  $ 1,541     $ 1,310  

Quoted Prices in Active Markets (Level 1)

    1,541       1,310  

Significant Other Observable Inputs (Level 2)

    -       -  

Significant Unobservable Inputs (Level 3)

    -       -