Note 7 - Derivative Instruments - Effect of Derivative Instruments Designated as Cash Flow Hedges (Details) - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Gain (Loss) Recognized in AOCI, net of tax	$ 0	$ (434)
Gain/ (Loss) Reclassified from AOCI into Income	$ 8	$ (246)