Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Total revenue	$ 5,353	$ 5,867
Operating expenses
Selling, general and administrative	10,620	11,207
Research and development	13,593	10,956
Cost of goods sold	652	529
Total operating expenses	24,865	22,692
Loss from operations	(19,512)	(16,825)
Other income (expense)
Foreign exchange loss	(1)	0
Interest income	1,282	1,660
Interest expense	(58)	(58)
Total other income (expense), net	1,223	1,602
Net loss	(18,289)	(15,223)
Other comprehensive (loss) income:
Unrealized (loss) income on available-for-sale debt securities	(35)	83
Comprehensive loss	$ (18,324)	$ (15,140)
Net loss per share, basic (in dollars per share)	$ (0.68)	$ (0.57)
Net loss per share, diluted (in dollars per share)	$ (0.68)	$ (0.57)
Weighted average number of common shares outstanding, basic (in shares)	26,980,698	26,862,646
Weighted average number of common shares outstanding, diluted (in shares)	26,980,698	26,862,646
Product sales, net
Total revenue	$ 5,353	$ 5,867