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Note 11 - Intangible Assets

3 Months Ended

Feb. 29, 2024

Intangible Assets Disclosure [Text Block]

11.

INTANGIBLE ASSETS

The components of intangible assets were as follows:

		*Balance at February 29, 2024*							*Balance at November 30, 2023*
	*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	$	(787	)	$	3,144	$	3,931	$	(723	)	$	3,208
Trademarks	Indefinite		360		—			360		360		—			360
Customer List	2		70		(64	)		6		70		(55	)		15
Total		$	4,361	$	(851	)	$	3,510	$	4,361	$	(778	)	$	3,583

The trademarks have an indefinite life and will be assessed annually for impairment. All other intangible assets are finite-lived.

Intangible assets amortization expenses are recorded within operating expenses in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Loss. Total intangible assets amortization expense for the three months ended February 29, 2024 and February 28, 2023 were $0.1 million.

Estimated future amortization expense related to intangible assets as of February 29, 2024 are as follows (in thousands):

Fiscal Year Ending November 30,
2024 (nine months)	$	197
2025		254
2026		254
2027		254
2028		254
Thereafter		1,937
Total	$	3,150