Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangible assets consisted of the following:

(in thousands)	March 31, 2023		December 31, 2022
Patents	$	405	$	404
Less accumulated amortization	(255)		(244)
Total intangible assets	$	150	$	160