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Note 6 - Product Warranties (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   

March 31,

 
   

2023

   

2022

 

Balance at beginning of year

  $ 1,973     $ 1,637  

Provision

    969       389  

Claims

    (744 )     (313

)

Balance at end of period

  $ 2,198     $ 1,713