Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue:
Total revenue	$ 283	$ 180	$ 628	$ 3,207
Operating expenses:
Cost of goods sold	114	175	305	389
Selling, general and administrative	3,880	4,572	13,323	15,799
Research and development	1,866	4,260	8,958	12,160
Total operating expenses	5,860	9,007	22,586	28,348
Loss from operations	(5,577)	(8,827)	(21,958)	(25,141)
Other income (expense):
Change in fair value of warrant liability	441	682	4,624	2,385
Other income, net	38	61	145	118
Interest income	190	377	781	989
Interest expense	(1)	(210)	(1,035)	(1,778)
Loss on foreign currency exchange		(13)	(4)	(34)
Foreign income tax expense	(30)		(61)	(300)
Total other income, net	638	897	4,450	1,380
Net loss	$ (4,939)	$ (7,930)	$ (17,508)	$ (23,761)
Per share information:
Net loss per share of common stock, basic (in dollars per share)	$ (5.79)	$ (14.20)	$ (20.54)	$ (50.65)
Net loss per share of common stock, diluted (in dollars per share)	$ (5.79)	$ (14.20)	$ (20.54)	$ (50.65)
Weighted average common shares outstanding, basic (in shares)	852,801	558,564	852,253	469,149
Weighted average common shares outstanding, diluted (in shares)	852,801	558,564	852,253	469,149
Product revenue
Revenue:
Total revenue	$ (21)	$ 1	$ 13	$ 28
License and royalty revenues
Revenue:
Total revenue	$ 304	$ 179	$ 615	$ 3,179