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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Product Warranty (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Term of product warranty 1 year  
Warranty liability, beginning of year $ 3,049 $ 2,876
Product warranty accrued 2,552 2,874
Warranty costs incurred (2,691) (2,701)
Warranty liability, end of year 2,910 3,049
Advertising Costs $ 409 $ 120