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Note 11 - Intangible Assets (Tables)

3 Months Ended

Feb. 28, 2023

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

							Balance at February 28, 2023												Balance at November 30, 2022
		Estimated Useful Lives in Years					Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount				Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount
Patents		10	-	17			$	3,931			$	(532	)		$	3,399			$	3,931			$	(468	)		$	3,463
Trademarks		Indefinite						360				—				360				360				—				360
Customer List		2						70				(29	)			41				70				(21	)			49
Total							$	4,361			$	(561	)		$	3,800			$	4,361			$	(489	)		$	3,872

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal Year Ending November 30,
2023 (nine months)		$	217
2024			272
2025			254
2026			254
2027			254
Thereafter			2,189
Total		$	3,440

X

- Definition

Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

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