Note 15 - Fair Value Measurements - Interest Rate Loan Contracts and Forward Contracts Fair Value Measurement (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Reported Value Measurement [Member]
Interest rate loan contracts	$ 1
Forward contracts	(11)
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Interest rate loan contracts	1
Forward contracts	(11)
Interest Rate Contract [Member] | Reported Value Measurement [Member]
Interest rate loan contracts	1
Interest Rate Contract [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Interest rate loan contracts	1
Forward Contracts [Member] | Estimate of Fair Value Measurement [Member]
Forward contracts	(11)
Forward Contracts [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Forward contracts	$ (11)