Note 17 - Derivative Financial Instruments - Derivative Position Designated as a Cash Flow Hedge (Details) - Interest Rate Swap, Maturing December 6, 2021 [Member] - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Notional amount		$ 10,000
Pay fixed swap rate	1.89%
Fair value	$ (117)	$ (160)

Note 17 - Derivative Financial Instruments - Derivative Position Designated as a Cash Flow Hedge (Details) - Interest Rate Swap, Maturing December 6, 2021 [Member] - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($)
$ in Thousands

Mar. 31, 2021

Dec. 31, 2020

$ 10,000

Pay fixed swap rate

1.89%

Fair value

$ (117)

$ (160)