Note 8 - Derivatives and Hedging Activities - Interest Rate Collars (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivative Liabilities	$ (215,735)	$ (200,701)
Cash Flow Hedges | Hedged Derivatives
Notional Amount	49,310
Derivative Liabilities	(30,407)	(35,631)
Cash Flow Hedges | Hedged Derivatives | Interest rate collars
Notional Amount	$ 50,000
Cap Strike Rate	4.40%
Floor Strike Rate	2.44%
Derivative Liabilities	$ (166)	$ (263)