Quarterly report pursuant to Section 13 or 15(d)

Note 19 - Leases (Details Textual)

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Note 19 - Leases (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 9 Months Ended
Aug. 31, 2022
Aug. 31, 2023
Wilmington/Andover, Massachusetts [Member]    
Operating Lease, Monthly Base Rent Expense   $ 20
Lease Expiration Date   Feb. 29, 2028
SOUTH AFRICA    
Lease Expiration Date   Dec. 31, 2024
SOUTH AFRICA | Lease for Larger Facility [Member]    
Operating Lease, Monthly Base Rent Expense   $ 70
Fort Wayne, Indiana [Member] | Fort Wayne Facility Member    
Operating Lease, Monthly Base Rent Expense   $ 10
Lease Expiration Date Jul. 31, 2027 Jul. 31, 2025
Fort Wayne, Indiana [Member] | Former Fort Wayne Facility Member    
Operating Lease, Monthly Base Rent Expense $ 20  
Las Vegas, Nevada [Member]    
Lease Expiration Date   Jan. 31, 2027
Las Vegas, Nevada [Member] | Maximum [Member]    
Operating Lease, Monthly Base Rent Expense   $ 10