Intangible Assets, Net

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, Net

Intangible Assets, Net

The following table provides the components of identifiable intangible assets, all of which are finite lived:

	March 31, 2022		December 31, 2021
Purchased technology-based intangible	$	2,358	$	2,358
Purchased patent	509		509
	2,867		2,867
Less: accumulated amortization	(2,829)		(2,816)
Intangible assets, net	38		51

Amortization expense was $13 and $13 for each of the three-month periods ended March 31, 2022 and 2021. During the remaining life of the purchased patent, estimated annual amortization expense is $50 in 2022.