Other Assets (Tables)

12 Months Ended

Dec. 31, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Assets

Other assets consisted of the following (in thousands):

	As of December 31,
	2020		2019
Demonstration assets, net	$	2,598	$	1,824
Deferred tax assets, net	69		72
Other	2,500		1,811
	$	5,167	$	3,707

Amortization expense was as follows for the periods presented (in thousands):

	Year Ended December 31,
	2020		2019		2018
Amortization expense	$	2,166	$	1,873	$	1,821