Note 12 - Restructuring (Details Textual) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	May 09, 2023	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Restructuring Plan, Effected Employees	50
Restructuring Plan, Effected Contractors	15
Restructuring Charges		$ 400	$ 1,632	$ 0
Restructuring Reserve		193	193	$ 0
Accrued Expenses and Other Current Liabilities [Member]
Restructuring Reserve		200	200
Other Liabilities [Member]
Restructuring Reserve		$ 100	$ 100