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NATURE OF OPERATIONS - Product Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
NATURE OF OPERATIONS    
Term of product warranty 1 year  
Warranty liability, beginning of period $ 2,910 $ 3,048
Product warranty accrued 941 636
Warranty costs incurred (537) (627)
Warranty liability, end of period $ 3,314 $ 3,057