Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

Intangible assets as of December 31, 2021 and 2020 are comprised of the following (in thousands):

	December 31, 2021
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	9,312	$	(6,935	)	$	2,377
Intangible assets	$	9,312	$	(6,935	)	$	2,377

	December 31, 2020
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	9,486	$	(6,759	)	$	2,727
Intangible assets	$	9,486	$	(6,759	)	$	2,727