CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Total revenues	$ 46,018	$ 41,404
Operating expenses:
Cost of sales, excluding amortization of acquired intangible assets	4,632	8,326
Research and development	64,662	49,642
Sales and marketing	11,689	25,507
General and administrative	40,102	34,817
Amortization of acquired intangible assets	0	2,050
Impairment of acquired intangible assets	0	20,699
Total operating expenses	121,085	141,041
Loss from operations	(75,067)	(99,637)
Other income (expense):
Interest and other income, net	6,949	2,131
Interest expense	(1,247)	(3,189)
Loss on extinguishment of debt	(1,347)	(1,559)
Total other income (expense), net	4,355	(2,617)
Net loss before income taxes	(70,712)	(102,254)
Provision for income taxes	(83)
Net loss	$ (70,795)	$ (102,254)
Net loss per share:
Net loss per share - basic	$ (1.82)	$ (2.74)
Net loss per share - diluted	$ (1.82)	$ (2.74)
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic	38,904	37,317
Weighted average common shares outstanding - diluted	38,904	37,317
Net Income (Loss)	$ (70,795)	$ (102,254)
Other comprehensive gain (loss):
Unrealized gain (loss) on available-for-sale securities, net of tax of $0 for periods presented	78	(55)
Comprehensive loss	(70,717)	(102,309)
Product [Member]
Revenues:
Total revenues	14,232	39,905
License and Collaboration Agreements [Member]
Revenues:
Total revenues	30,797	362
Royalty Income [Member]
Revenues:
Total revenues	$ 989	$ 1,137