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Product Warranties (Tables)
12 Months Ended
Dec. 31, 2023
Product Warranties  
Summary of warranty liability activity

December 31, 

(in thousands)

    

2023

    

2022

Warranty liability at beginning of year

$

5

$

Accruals

 

105

 

5

Payments

 

 

Warranty liability at end of year

$

110

$

5