Major components of intangible assets as of March 31, 2026, are provided in the table below (in thousands):


	Useful Lives	Cost		Accumulated Amortization			Total
License agreements	20 years	$	2,043	$	(1,412	)	$	631
Patent costs	20 years		1,629		(253	)		1,376
Trademark costs			231		—			231
Total		$	3,903	$	(1,665	)	$	2,238

Major components of intangible assets as of December 31, 2025, are provided in the table below (in thousands):


	Useful Lives	Cost		Accumulated Amortization			Total
License agreements	20 years	$	2,043	$	(1,356	)	$	687
Patent costs	20 years		1,610		(242	)		1,368
Trademark costs			230		—			230
Total		$	3,883	$	(1,598	)	$	2,285

Amortization expense for intangible assets was $0.1 million and $0.2 million for the three months ended March 31, 2026 and 2025, respectively. There were no impairments and no write-offs of intangibles in the three months ended March 31, 2026 and 2025, respectively.

Future amortization expense for intangible assets as of March 31, 2026 is provided in the table below (in thousands):


Years Ending December 31,	Amount
2026 (remaining nine months)	$	107
2027		143
2028		143
2029		143
2030		143
Thereafter		1,328
Total	$	2,007