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Note 14 - Product Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of Our Major Components of Product Inventories
Our major components of product inventories are (
in
thousands
):
 
                         
    
2023
    
2022
 
Concentrates
  
$
13,328
 
  
$
21,513
 
Stockpiled ore
  
 
7,168
 
  
 
6,869
 
In-process
  
 
8,327
 
  
 
8,921
 
  
 
 
    
 
 
 
Total product inventories
  
$
28,823
 
  
$
37,303