CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Total revenues	$ 41,404	$ 36,939
Operating expenses:
Cost of sales, excluding amortization of acquired intangible assets	8,326	8,177
Research and development	49,642	28,500
Sales and marketing	25,507	27,503
General and administrative	34,817	25,575
Amortization of acquired intangible assets	2,050	2,460
Impairment of acquired intangible assets	20,699	0
Total operating expenses	141,041	92,215
Loss from operations	(99,637)	(55,276)
Other income (expense):
Interest and other income, net	2,131	292
Interest expense	(3,189)	(5,498)
(Loss) gain on extinguishment of debt	(1,559)	2,065
Total other expense, net	(2,617)	(3,141)
Net loss	$ (102,254)	$ (58,417)
Net loss per share:
Net loss per share - basic	$ (2.74)	$ (2.03)
Net loss per share - diluted	$ (2.74)	$ (2.03)
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic	37,317	28,758
Weighted average common shares outstanding - diluted	37,317	28,758
Net loss	$ (102,254)	$ (58,417)
Other comprehensive loss:
Unrealized loss on available-for-sale securities, net of tax of $0 for periods presented	(55)	0
Comprehensive loss	(102,309)	(58,417)
Product [Member]
Revenues:
Total revenues	39,905	35,312
License and Collaboration Agreements [Member]
Revenues:
Total revenues	362	756
Royalty Income [Member]
Revenues:
Total revenues	$ 1,137	$ 871