Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Total revenue	$ 1,952	$ 1,964	$ 4,013	$ 4,042
Costs and expenses:
Research and development	3,361	3,850	7,082	8,321
Selling, general and administrative	5,473	6,296	12,211	13,595
Total costs and expenses	11,527	15,015	26,188	30,780
Loss from operations	(9,575)	(13,051)	(22,175)	(26,738)
Other income (expense):
Interest expense to related party	(478)	(1,541)	(1,657)	(3,063)
Change in fair value of derivative related to Term Loan with related party	1,238	1,022	1,130	252
Change in fair value of warrant liabilities	(180)	7,192	(152)	5,888
Other, net	32	31	357	(651)
Total other income (expense)	612	6,704	(322)	2,426
Net loss	$ (8,963)	$ (6,347)	$ (22,497)	$ (24,312)
Net loss per share - basic	$ (0.64)	$ (7.84)	$ (2.34)	$ (51.23)
Net loss per share - diluted	$ (0.64)	$ (7.84)	$ (2.34)	$ (51.23)
Weighted-average number of common shares used in computing net loss per share - basic	14,095,348	809,168	9,595,079	474,609
Weighted-average number of common shares used in computing net loss per share - diluted	14,095,348	809,168	9,595,079	474,609
Product [Member]
Revenue:
Total revenue	$ 1,952	$ 1,964	$ 4,013	$ 3,619
Costs and expenses:
Cost of product revenue	$ 2,693	$ 4,869	$ 6,895	8,864
Contribution [Member]
Revenue:
Total revenue				$ 423