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Note 13 - Property, Plant and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

June 30,

   

December 31,

 
   

2023

   

2022

 

Cost:

               

Land

  $ 22,261     $ 22,261  

Land improvements

    3,054       3,054  

Buildings and lease hold improvements

    99,010       98,490  

Plant and equipment

    843,510       789,910  
      967,835       913,715  

Less: accumulated depreciation

    (503,314 )     (451,399 )

Total

  $ 464,521     $ 462,316  
   

June 30,

   

December 31,

 
   

2023

   

2022

 

Cost:

               

Buildings

  $ 18,623     $ 18,623  

Plant and equipment

    589       1,275  

Total

    19,212       19,898  

Less: accumulated amortization

    (9,031 )     (9,085 )

Total

  $ 10,181     $ 10,813