Major components of intangible assets as of June 30, 2026, are provided in the table below (in thousands):


	Useful Lives	Cost		Accumulated Amortization			Total
License agreements	20 years	$	2,043	$	(1,427	)	$	616
Patent costs	20 years		1,629		(274	)		1,355
Trademark costs			231		—			231
Total		$	3,903	$	(1,701	)	$	2,202

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 less than $0.1 million for each of the three-month periods ended June 30, 2026 and June 30, 2025. Amortization expense for intangible assets was $0.1 million and $0.3 million for the six months ended June 30, 2026 and 2025, respectively. There were no impairments and no write-offs of intangibles in the three and six months ended June 30, 2026 and 2025, respectively.

Future amortization expense for intangible assets as of June 30, 2026 is provided in the table below (in thousands):


Years Ending December 31,	Amount
2026 (remaining six months)	$	72
2027		143
2028		143
2029		143
2030		143
Thereafter		1,327
Total	$	1,971