Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Summary of Product Revenue by Geographical Locations of Customers

Product revenue by geographical locations of customers during the years ended December 31, 2022, 2021 and 2020, was as follows (in thousands):

	Year Ended December 31,
	2022		2021		2020
Product revenue:
North America	$	103,978	$	68,968	$	32,380
Europe, Middle East and Africa		56,297		60,124		57,427
Other		1,773		1,767		2,113
Total product revenue	$	162,048	$	130,859	$	91,920

Computation of Basic and Diluted Net Loss per Share

The following table sets forth the reconciliation of the numerator and denominator used in the computation of basic and diluted net loss per share for the years ended December 31, 2022, 2021 and 2020 (in thousands, except per share amounts):

	Year Ended December 31,
	2022			2021			2020
Numerator for Basic and Diluted:
Net loss attributable to Cerus Corporation	$	(42,779	)	$	(54,374	)	$	(59,857	)
Denominator:
Basic weighted average number of shares outstanding		176,545			171,279			163,949
Effect of dilutive potential shares		—			—			—
Diluted weighted average number of shares outstanding		176,545			171,279			163,949
Net loss per share attributable to Cerus Corporation:
Basic and diluted	$	(0.24	)	$	(0.32	)	$	(0.37	)

Anti-Dilutive Effect of Common Shares

The table below presents potential shares that were excluded from the calculation of the weighted average number of shares outstanding used for the calculation of diluted net loss per share. These are excluded from the calculation due to their anti-dilutive effect for the years ended December 31, 2022, 2021 and 2020 (shares in thousands):

	Year Ended December 31,
	2022		2021		2020
Weighted average number of anti-dilutive potential shares:
Stock options		16,072		16,345		17,692
Restricted stock units		7,966		6,798		5,485
Employee stock purchase plan rights		252		153		32
Total		24,290		23,296		23,209