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Note 10 - Intangible Assets

12 Months Ended

Nov. 30, 2023

Intangible Assets Disclosure [Text Block]

10.

INTANGIBLE ASSETS

The components of intangible assets were as follows (in thousands):

			As of November 30, 2023							As of 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	$	(723	)	$	3,208	$	3,931	$	(468	)	$	3,463
Trademarks	Indefinite			360		—			360		360		—		$	360
Customer List		2		70		(55	)		15		70		(21	)	$	49
Total			$	4,361	$	(778	)	$	3,583	$	4,361	$	(489	)	$	3,872

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 Consolidated Statements of Operations and Comprehensive Loss. Total intangible assets amortization expense for the years ended November 30, 2023 and 2022 were $0.3 million and $0.3 million, respectively.

Estimated future amortization expense related to intangible assets as of November 30, 2023 are as follows (in thousands):

Fiscal Year Ending November 30,
2024	$	269
2025		254
2026		254
2027		254
2028		254
Thereafter		1,938
Total	$	3,223