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Note 16 - Fair Value Measurement (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
    September 30, 2021  
    Fair Value Measurement Using     Assets (Liabilities)  
    Level 1     Level 2     Level 3     at Fair value  
                                 

Derivative instrument liability, net

  $ -     $ (375 )   $ -     $ (375 )
                                 

Total liability, net

  $ -     $ (375 )   $ -     $ (375 )
    December 31, 2020  
    Fair Value Measurement Using     Assets (Liabilities)  
    Level 1     Level 2     Level 3     at Fair value  
                                 

Derivative instrument asset, net

  $ -     $ 3,647     $ -     $ 3,647  
                                 

Total assets, net

  $ -     $ 3,647     $ -     $ 3,647