INTANGIBLE ASSETS - Note 8

12 Months Ended

Dec. 31, 2018

Contract with Customer, Liability, Current, Change

Intangible assets - Note 8

8. INTANGIBLE ASSETS

Our intangible assets consist exclusively of technology-based purchased patents. The gross value of our intangible assets was $1.6 million in each of the years ended December 31, 2018 and 2017. Amortization expense was $116,000 in 2018 and $116,000 in 2017. In 2018 and 2017 there were no impairments recorded and none of our patents were abandoned in prosecution. The following table outlines our estimated future amortization expense related to intangible assets held at December 31, 2018 (in thousands):

Years Ended December 31,		Amount
2019	$	115
2020		98
2021		80
2022		71
2023		54
Thereafter		68
	$	486