XML 33 R22.htm IDEA: XBRL DOCUMENT v3.22.0.1
Note 5 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
  

2021

  

2020

 

Balance, January 1

 $149  $195 

Provision for warranties issued

  142   200 

Settlements made

  (158)  (246)

Balance, December 31

 $133  $149