Note 3 - Fair Value of Financial Instruments (Details Textual) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivative Asset, Total		$ 122,000
Derivative Assets (Liabilities), at Fair Value, Net, Total	$ (2,231)	$ (3,106)	[1]
Interest Rate Swap [Member]
Derivative Assets (Liabilities), at Fair Value, Net, Total	$ 2,200

[1] Includes derivative assets of $122 at December 31, 2020.