XML 33 R23.htm IDEA: XBRL DOCUMENT v3.23.2
Note 5 - Product Warranties (Tables)
9 Months Ended
Jul. 31, 2023
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   

Nine Months Ended

 
   

July 31,

 
   

2023

   

2022

 

Balance at beginning of period

  $ 75,000     $ 75,000  

Liabilities accrued for warranties issued during the period

    77,089       98,392  

Warranty claims and costs paid during the period

    (50,700 )     (47,606 )

Changes in liability for pre-existing warranties during the period

    (21,389 )     (50,786 )

Balance at end of period

  $ 80,000     $ 75,000