Intangible Assets

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

7.INTANGIBLE ASSETS

Patent costs, which are included in Other assets in the accompanying Consolidated Balance Sheets, as of December 31 were as follows (in thousands):

	2024			2023
Patent costs	$	637		$	900
Accumulated amortization		(488	)		(708	)
	$	149		$	192

Definite lived intangible assets, such as patent rights, are amortized and tested for impairment if a triggering event occurs.

Amortization expense was approximately $43,000, $66,000 and $75,000 in 2024, 2023, and 2022, respectively.