Note 18 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	Mar. 29, 2023	Nov. 06, 2022
Accounts Payable, Current	$ 4,257		$ 4,257			$ 4,130
Related Party [Member]
Accounts Payable, Current	300		300			100
Glytech License Agreement [Member]
Related Party Transaction, Amounts of Transaction	0	$ 0	0	$ 300
Glytech License Agreement [Member] | NRX Pharmaceuticals, Inc [Member] | Minimum [Member]
Investment Owned, Fair Value								$ 50,000
Consultation Agreement with Dr. Jonathan Javitt [Member]
Related Party Transaction, Amounts of Transaction	200	200	800	200
Consultation Agreement with Zachary Javitt [Member]
Related Party Transaction, Amounts of Transaction	$ 100	$ 200	$ 200	$ 200
Consulting Agreement, Annual Payment							$ 600
Consulting Agreement, Monthly Payment							100
Consulting Agreement, Performance Bonus, Target Value							$ 300
Accrued Bonuses, Current					$ 200	$ 200