CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses:
Research and development	$ 16,220	$ 15,288	$ 45,493	$ 48,119
Selling, general and administrative	19,908	20,357	60,175	59,285
Total operating expenses	36,128	35,645	105,668	107,404
Loss from operations	(7,447)	(11,126)	(24,130)	(41,974)
Non-operating expense, net:
Foreign exchange gain (loss)	234	(164)	(68)	(442)
Interest expense	(1,406)	(1,279)	(4,134)	(3,589)
Other income (expense), net	165	205	(647)	998
Total non-operating expense, net	(1,007)	(1,238)	(4,849)	(3,033)
Loss before income taxes	(8,454)	(12,364)	(28,979)	(45,007)
Provision for income taxes	67	73	221	248
Net loss	(8,521)	(12,437)	(29,200)	(45,255)
Net loss attributable to noncontrolling interest	(39)		(45)
Net loss attributable to Cerus Corporation	$ (8,482)	$ (12,437)	$ (29,155)	$ (45,255)
Net loss per share attributable to Cerus Corporation
Basic	$ (0.05)	$ (0.07)	$ (0.17)	$ (0.27)
Diluted	$ (0.05)	$ (0.07)	$ (0.17)	$ (0.27)
Weighted average shares outstanding:
Basic	177,236	171,904	176,231	170,666
Diluted	177,236	171,904	176,231	170,666
Product
Revenue	$ 39,571	$ 36,131	$ 118,014	$ 90,994
Cost of revenue	17,662	17,582	55,456	44,000
Gross profit	21,909	18,549	62,558	46,994
Government Contract
Revenue	$ 6,772	$ 5,970	$ 18,980	$ 18,436