Segment Reporting (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	1
Number of reportable segments | segment	1
Revenues	$ 8,720	$ 12,053
Costs and expenses:
Total Manufacture and Supply Expenses	3,652	4,389
Total Research and Development Expenses	5,361	5,932
General & Administrative expenses:
Total Selling, General and Administrative Expenses	19,072	10,689
Total costs and expenses	28,085	21,010
Loss from operations	(19,365)	(8,957)
Net loss before income taxes	(22,930)	(12,828)
Net loss	(22,930)	(12,828)
Comprehensive loss	(22,930)	(12,828)
Reportable Segment
Segment Reporting Information [Line Items]
Revenues	8,720	12,053
Costs and expenses:
Total Manufacture and Supply Expenses	3,652	4,389
Total Research and Development Expenses	5,361	5,932
Selling expenses:
Total Selling expenses	2,956	1,072
General & Administrative expenses:
Total General and Administrative Expenses	16,116	9,617
Total Selling, General and Administrative Expenses	19,072	10,689
Total costs and expenses	28,085	21,010
Loss from operations	(19,365)	(8,957)
Other expenses	(3,565)	(3,871)
Net loss before income taxes	(22,930)	(12,828)
Net loss	(22,930)	(12,828)
Comprehensive loss	(22,930)	(12,828)
Reportable Segment | Anaphylm project expenses
Costs and expenses:
Total Research and Development Expenses	2,488	3,147
Reportable Segment | AQST-108 project expenses
Costs and expenses:
Total Research and Development Expenses	195	789
Reportable Segment | Libervant project expenses
Costs and expenses:
Total Research and Development Expenses	0	17
Reportable Segment | Personnel costs
Costs and expenses:
Total Research and Development Expenses	2,132	1,704
Selling expenses:
Total Selling expenses	694	932
General & Administrative expenses:
Total General and Administrative Expenses	4,840	4,661
Reportable Segment | Other
Costs and expenses:
Total Research and Development Expenses	546	275
Selling expenses:
Total Selling expenses	2,262	140
General & Administrative expenses:
Total General and Administrative Expenses	$ 11,276	$ 4,956