Note 4 - Derivative and Other Hedging Instruments - Schedule of Interest Rate Cap Positions (Details) - Interest Rate Cap [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Notional amount	$ 200,000	$ 200,000
Cost	$ 1,450	$ 1,450
Strike Swap Rate	0.09%	0.09%
Curve Spread (Year)	2 years 9 months 29 days	2 years 9 months 29 days
Net Estimated Fair Value	$ 474	$ 1,119
Cost	$ 1,450	$ 1,450