Note 7 - Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative instruments, designated as cash flow hedges (net)	$ 1,598	$ 390
Derivative Instruments [Member]
Derivative instruments, designated as cash flow hedges (net)	1,514	452
Derivative Instruments [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative instruments, designated as cash flow hedges (net)	(84)	62
Derivative Instruments [Member] | Not Designated as Hedging Instrument [Member]
Derivative instruments, designated as cash flow hedges (net)	$ 0	$ 0