Note 12 - Restructuring (Details Textual) $ in Thousands			3 Months Ended	9 Months Ended	12 Months Ended
	Feb. 08, 2024	May 09, 2023	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Restructuring Charges				$ 693
Restructuring Reserve			$ 3	3	$ 193
Other Liabilities [Member]
Restructuring Reserve					100
Accrued Expenses and Other Current Liabilities [Member]
Restructuring Reserve					100
Employee Severance [Member]
Restructuring Charges				683	1,600
Restructuring Reserve			3	3	$ 0
Employee Severance [Member] | Approximation [Member]
Restructuring Charges			$ (10)	$ 600
Employee Severance [Member] | Employees [Member]
Restructuring and Related Cost, Number of Positions Eliminated	17	50
Employee Severance [Member] | Contractors [Member]
Restructuring and Related Cost, Number of Positions Eliminated	26	15