Note 8 - Derivative Instruments - Fair Value of Forward and Put Option Contracts (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Current Assets [Member]
Derivative [Line Items]
Other current assets	$ 1,200	$ 1,200
Contracts in liability position	0	0
Net asset (liability)	1,200	1,200
Other Non-current Assets [Member]
Derivative [Line Items]
Other current assets	0	100
Contracts in liability position	0	0
Net asset (liability)	0	100
Other Current Liabilities [Member]
Derivative [Line Items]
Other current assets	0	0
Contracts in liability position	0	(12,100)
Net asset (liability)	0	(12,100)
Other Non-current Liabilities [Member]
Derivative [Line Items]
Other current assets	0	0
Contracts in liability position	1,100	(2,500)
Net asset (liability)	$ 1,100	$ (2,500)