Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual)

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Note 9 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2024
Aug. 31, 2024
Aug. 31, 2023
Aug. 31, 2024
Aug. 31, 2023
Nov. 30, 2023
Nov. 30, 2022
Standard Product Warranty, Term (Year)   1 year          
Extended Product Warranty, Term (Year) 3 years 3 years          
Accounts Receivable, after Allowance for Credit Loss, Current $ 2,128 $ 2,128   $ 2,128   $ 2,945 $ 5,900
Accounts Receivable, Allowance for Credit Loss 300 300   300   500 20
Contract with Customer, Liability $ 800 800 $ 800 800 $ 800 $ 1,900 $ 800
Contract with Customer, Liability, Revenue Recognized   $ 100 $ 400 $ 200 $ 500