Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual)

v3.22.2
Note 8 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended
Feb. 28, 2022
May 31, 2022
Nov. 30, 2021
Standard Product Warranty, Term (Year) 1 year    
Extended Product Warranty, Term (Year) 3 years    
Accounts Receivable, Allowance for Credit Loss, Ending Balance   $ 10 $ 10