Revenues (Tables)

9 Months Ended

Sep. 30, 2022

Revenues

Summary of revenue by type

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands)	2022		2021		2022		2021
Product revenue, net	$	8,643	$	7,858	$	24,363	$	14,928
Collaboration revenues		141		562		866		3,377
Research premium and grant revenue		369		442		1,135		1,329
Total revenues	$	9,153	$	8,862	$	26,364	$	19,634