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Note 11 - Intangibles

12 Months Ended

Dec. 31, 2023

Intangible Assets Disclosure [Text Block]

(11) Intangibles

Patent costs associated with the application and award of patents in the U.S. and various other countries are capitalized and amortized on a straight-line basis over the term of the patents as determined at the award date, which varies depending on the pendency period of the application, but generally approximates seventeen years.

Amortization of intangible assets acquired is calculated using the straight-line method over the estimated useful lives of the assets.

	*Estimated Life*		*December 31,*			*December 31,*
	*(years)*		*2023*			*2022*
Capitalized patent costs	~17		$	9,231		$	10,646

Intangible assets acquired:
Purchased intellectual property		10		250			250
Developed technology		5		22,836			21,661
Customer relationships		10		10,913			10,351
Gross intangible assets				43,230			42,908
Accumulated amortization				(14,772	)		(9,738	)
Intangibles, net			$	28,458		$	33,170

The amortization of capitalized patent costs, purchased intellectual property, and developed technology is recorded in “cost of revenue” and the amortization of customer relationships is recorded in “operating expenses” in the Consolidated Statements of Operations.

Amortization expense on intangible assets was as follows:

	*Year Ended December 31,*
	*2023*		*2022*
Amortization expense	$	6,097	$	6,078

For intangible assets recorded at December 31, 2023, the estimated future aggregate amortization expense for the years ending December 31, 2024 through December 31, 2028 is as follows:

	*Amortization*
Year Ended December 31,	*Expense*
2024	$	6,194
2025		6,175
2026		6,142
2027		1,542
2028		1,531