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Note I - Intangible Assets, Net

12 Months Ended

Dec. 31, 2024

Notes to Financial Statements

Intangible Assets Disclosure [Text Block]

NOTE I—INTANGIBLE ASSETS

Intangible assets consisted of the following for the periods indicated (in thousands):

		December 31, 2024
		Gross				Accumulated				Intangible
		Amount				amortization				assets, net
Patents		$	9,873			$	(6,355	)		$	3,518
Trademarks			218				(56	)			162
Total intangible assets		$	10,091			$	(6,411	)		$	3,680

		December 31, 2023
		Gross				Accumulated				Intangible
		Amount				amortization				assets, net
Patents		$	9,502			$	(5,981	)		$	3,521
Trademarks			138				(31	)			107
Total intangible assets		$	9,640			$	(6,012	)		$	3,628

For the years ended December 31, 2024, 2023 and 2022, amortization expense for intangible assets, included in general and administrative expenses on the income statement, was $0.4 million, $0.7 million and $0.6 million, respectively. The remaining weighted average amortization period for intangible assets is approximately 9 years.

At December 31, 2024, future amortization expense for intangible assets is estimated to be (in thousands):

		December 31, 2024
2025		$	438
2026			438
2027			438
2028			438
2029			438
Thereafter			1,490
Total		$	3,680

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The entire disclosure for all or part of the information related to intangible assets.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
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-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
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-URI https://asc.fasb.org/985-20/tableOfContent

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