Note 4. Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill for our modules business consisted of the following at December 31, 2025 and 2024 (in thousands):

	December 31, 2024		Acquisitions (Impairments)		Foreign Currency Translation Adjustments		December 31, 2025
Gross amount	$	421,700	$	—	$	2,760	$	424,460
Accumulated impairment losses	(393,365)		—		—		(393,365)
Total	$	28,335	$	—	$	2,760	$	31,095

	December 31, 2023		Acquisitions (Impairments)		Foreign Currency Translation Adjustments		December 31, 2024
Gross amount	$	423,052	$	—	$	(1,352)	$	421,700
Accumulated impairment losses	(393,365)		—		—		(393,365)
Total	$	29,687	$	—	$	(1,352)	$	28,335

Schedule of Intangible Assets, Net

The following tables summarize our intangible assets at December 31, 2025 and 2024 (in thousands):

	December 31, 2025
	Gross Amount		Accumulated Amortization		Net Amount
Developed technology	$	97,645	$	(92,333)	$	5,312
In-process research and development	43,159		—		43,159
Patents	10,500		(7,964)		2,536
Total	$	151,304	$	(100,297)	$	51,007

	December 31, 2024
	Gross Amount		Accumulated Amortization		Net Amount
Developed technology	$	97,645	$	(88,717)	$	8,928
In-process research and development	43,159		—		43,159
Patents	10,068		(7,501)		2,567
Total	$	150,872	$	(96,218)	$	54,654

Schedule of Intangible Assets, Future Amortization Expense

Estimated future amortization expense for our definite-lived intangible assets was as follows at December 31, 2025 (in thousands):

	Amortization Expense
2026	$	2,739
2027	2,639
2028	920
2029	536
2030	279
Thereafter	735
Total amortization expense	$	7,848