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Inventories
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories were as follows (in thousands):
March 31,
2023
December 31, 2022
Raw materials and manufacturing supplies$6,003 $4,977 
Finished products1,473 1,964 
  Total inventories$7,476 $6,941 
At March 31, 2023 and December 31, 2022, no inventory valuation allowance was determined to be necessary.