Note 16 - Balance Sheet Offsetting - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative assets, gross	$ 71,840	$ 90,451
Derivatives, Gross Amounts Offset in the Balance Sheet	22,220	46,008
Derivative assets, net	49,620	44,443
Derivatives, collateral posted	49,620	42,930
Derivative assets not offset	0	1,513
Derivative liabilities, gross	42,027	51,864
Derivatives, Gross Amounts Offset in the Balance Sheet	0	0
Derivative liabilities, net	42,027	51,864
Derivatives, collateral posted	0	0
Derivative liabilities not offset	$ 42,027	$ 51,864