Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Total revenue	$ 3,677	$ 7,428	$ 16,822	$ 21,078
Costs and expenses:
Research and development	6,375	6,384	21,056	16,448
Selling, general and administrative	7,017	8,536	24,071	21,983
Total costs and expenses	19,477	19,640	62,498	53,772
Loss from operations	(15,800)	(12,212)	(45,676)	(32,694)
Other income (expense):
Interest income	1	6	6	18
Interest expense	(1,560)	(1,919)	(4,556)	(5,642)
Change in fair value of derivative instrument	(117)		(1,792)	1,010
Change in fair value of derivative warrant liability	179		179
Other income (expense), net	(78)	163	(65)	211
Total other expense	(1,575)	(1,750)	(6,228)	(4,403)
Net loss	(17,375)	(13,962)	(51,904)	(37,097)
Deemed dividend on Series A redeemable convertible preferred stock	(330)		(330)
Net loss attributable to common stockholders	$ (17,705)	$ (13,962)	$ (52,234)	$ (37,097)
Net loss per share — basic	$ (2.95)	$ (4.21)	$ (12.08)	$ (11.86)
Net loss per share — diluted	$ (2.95)	$ (4.21)	$ (12.08)	$ (11.86)
Weighted-average number of common shares used in computing net loss per share — basic	6,008,819	3,317,646	4,323,452	3,127,951
Weighted-average number of common shares used in computing net loss per share — diluted	6,008,819	3,317,646	4,323,452	3,127,951
Other comprehensive loss:
Net loss	$ (17,375)	$ (13,962)	$ (51,904)	$ (37,097)
Net unrealized gain on marketable securities arising during the period			2	9
Net realized (gain) loss on marketable securities included in net loss			2	(14)
Total other comprehensive (loss) income, net of taxes			4	(5)
Comprehensive loss	(17,375)	(13,962)	(51,900)	(37,102)
Product [Member]
Revenue:
Total revenue	2,641	4,306	9,044	12,634
Costs and expenses:
Cost of product revenue	6,085	4,720	17,371	15,341
Contribution [Member]
Revenue:
Total revenue	$ 1,036	$ 3,122	$ 7,778	$ 8,444