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Note 4 - Property, Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

As of

 
   

March 31, 2025

   

December 31, 2024

 

Land

  $ 8,643     $ 8,642  

Plant and buildings

    184,088       182,724  

Furniture and fixtures

    2,805       2,686  

Machinery and equipment

    5,905       5,721  

Construction in progress

    46,947       46,201  

Property held for development

    15,431       15,431  

Finance lease right of use assets

    2,889       2,889  

Total gross property, plant & equipment

    266,708       264,294  

Less accumulated depreciation

    (67,273 )     (64,902 )

Total net property, plant & equipment

  $ 199,435     $ 199,392  
Depreciation Of Property, Plant, and Equipment [Table Text Block]
   

Years

 

Plant and buildings

    20 - 30  

Machinery and equipment

    5 - 15  

Furniture and fixtures

    3 - 5