Note 9 - Derivative Instruments and Hedging Activities - (Losses) Gains Recognized on Derivatives Instruments Not Designated as Hedging (Details) - Nonoperating Income (Expense) [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative instruments gain (loss)	$ 48	$ 41	$ 41	$ 51
Foreign Exchange Forward [Member]
Derivative instruments gain (loss)	$ 48	$ 41	$ 41	$ 51