Segment, Customer and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Customer that Accounted for More Than Ten Percent of Total Product Revenue

The Company had the following significant customers that accounted for more than 10% of the Company’s total product revenue, during the years ended December 31, 2020, 2019 and 2018 (in percentages):

	Year Ended December 31,
	2020	2019	2018
Établissement Français du Sang	21%	27%	38%
American Red Cross	20%	14%	*

* Represents an amount less than 10% of product revenue.

Net Revenues and Long-Lived Assets by Geographical Location

Revenues by geographical location were based on the location of the customer during the years ended December 31, 2020, 2019 and 2018, and was as follows (in thousands):

	Year Ended December 31,
	2020		2019		2018
Product revenue:
United States	$	31,517	$	20,611	$	12,563
France		19,404		20,075		23,043
Belgium		6,921		7,272		6,788
Other countries		34,078		26,691		18,514
Total product revenue		91,920		74,649		60,908
Government contract revenue:
United States		22,329		19,125		15,143
Total government contract revenue		22,329		19,125		15,143
Total revenue	$	114,249	$	93,774	$	76,051

Long-lived assets by geographical location at December 31, 2020 and December 31, 2019, were as follows (in thousands):

	December 31,
	2020		2019
U.S. and territories	$	13,559	$	14,619
Europe & other		308		411
Total long-lived assets	$	13,867	$	15,030