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Inventories
12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories were as follows (in thousands):
December 31, 2022
Raw materials and manufacturing supplies$4,977 
Finished products1,964 
  Total inventories$6,941 
At December 31, 2022, no inventory valuation allowance was determined to be necessary.