Note 16 - Balance Sheet Offsetting - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivative assets, gross	$ 81,760	$ 90,451
Derivatives, Gross Amounts Offset in the Balance Sheet	18,768	46,008
Derivative assets, net	62,992	44,443
Derivatives, collateral posted	61,790	42,930
Derivative assets not offset	1,202	1,513
Derivative liabilities, gross	50,017	51,864
Derivatives, Gross Amounts Offset in the Balance Sheet	0	0
Derivative liabilities, net	50,017	51,864
Derivatives, collateral posted	0	0
Derivative liabilities not offset	$ 50,017	$ 51,864