Note 6 - Investments, Available for Sale ("AFS") - Schedule of Available-for-Sale Securities Reconciliation (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Amortized Cost, AFS	$ 577,279	$ 567,029
Gross unrealized gains, AFS	658	800
Gross unrealized losses, AFS	(37,185)	(42,206)
Available For Sale ("AFS")	540,752	525,623
Collateralized Loan Obligations [Member]
Amortized Cost, AFS	38,648	39,670
Gross unrealized gains, AFS	93	117
Gross unrealized losses, AFS	(286)	(203)
Available For Sale ("AFS")	38,455	39,584
Small Business Administration Bonds [Member]
Amortized Cost, AFS	61,208	66,491
Gross unrealized gains, AFS	286	337
Gross unrealized losses, AFS	(2,135)	(2,402)
Available For Sale ("AFS")	59,359	64,426
US States and Political Subdivisions Debt Securities [Member]
Amortized Cost, AFS	6,719	6,746
Gross unrealized gains, AFS	0	0
Gross unrealized losses, AFS	(869)	(688)
Available For Sale ("AFS")	5,850	6,058
Taxable Municipal Bonds [Member]
Amortized Cost, AFS	64,509	64,530
Gross unrealized gains, AFS	0	0
Gross unrealized losses, AFS	(10,461)	(11,970)
Available For Sale ("AFS")	54,048	52,560
Collateralized Mortgage-Backed Securities [Member]
Amortized Cost, AFS	406,195	389,592
Gross unrealized gains, AFS	279	346
Gross unrealized losses, AFS	(23,434)	(26,943)
Available For Sale ("AFS")	$ 383,040	$ 362,995