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Note 6 - Product Warranties (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   

September 30,

 
   

2022

   

2021

 

Balance at beginning of year

  $ 1,637     $ 1,361  

Provision

    1,085       1,317  

Acquired

    645       -  

Claims

    (1,238 )     (1,248

)

Balance at end of period

  $ 2,129     $ 1,430