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Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
  

As of December 31,

 
  

2023

  

2022

 

Balance, beginning of period

 $149  $125 

Increase of warranty reserve

  206   23 

Warranty claims

  (19)   

Other adjustments

  (14)  1 

Balance, end of period

 $322  $149