Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue From Contract With Customer [Abstract]

Schedule of Revenue Disaggregated by Types and Geography

The following table presents revenue disaggregated by type and geography (in thousands):

	Years Ended December 31,
U.S.	2020		2019		2018
Product	$	8,428	$	41,985	$	32,265
Service		7,739		4,251		1,966
Total U.S. revenue	$	16,167	$	46,236	$	34,231
Outside of U.S. ("OUS")
Product	$	34,314	$	37,519	$	44,361
Service		6,061		3,552		1,895
Distribution rights		475		475		475
Total OUS revenue	$	40,850	$	41,546	$	46,731
Total
Product	$	42,742	$	79,504	$	76,626
Service		13,800		7,803		3,861
Distribution rights		475		475		475
Total revenue	$	57,017	$	87,782	$	80,962