Note 22 - Disclosure of Financial Instruments Not Reported at Fair Value - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Cash and cash equivalents		$ 291,020	$ 265,959
Accrued interest receivable		27,697	26,830
Non-interest bearing		1,456,138	1,548,624
Time deposits	[1]	1,237,788	983,277
Accrued interest payable		1,912	2,094
Reported Value Measurement [Member]
Cash and cash equivalents		291,020	265,959
HTM debt securities		370,171	439,837
Federal Home Loan Bank stock		21,603	16,236
Loans, net		6,433,459	5,691,664
Accrued interest receivable		27,697	26,830
Non-interest bearing		1,456,138	1,548,624
Transaction deposits		4,472,475	4,138,847
Time deposits		1,237,788	983,277
Securities sold under agreement to repurchase		162,967	152,991
Federal funds purchased		6,525	12,852
Subordinated debentures		26,806	26,740
FHLB advances		300,000	200,000
Accrued interest payable		1,912	2,094
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents		291,020	265,959
HTM debt securities		341,357	408,519
Federal Home Loan Bank stock		21,603	16,236
Loans, net		6,256,752	5,520,059
Accrued interest receivable		27,697	26,830
Non-interest bearing		1,456,138	1,548,624
Transaction deposits		4,472,475	4,138,847
Time deposits		1,236,463	976,841
Securities sold under agreement to repurchase		162,967	152,991
Federal funds purchased		6,525	12,852
Subordinated debentures		26,346	26,746
FHLB advances		294,848	200,047
Accrued interest payable		1,912	2,094
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents		291,020	265,959
HTM debt securities		153,108	198,327
Federal Home Loan Bank stock		0	0
Loans, net		0	0
Accrued interest receivable		27,697	26,830
Non-interest bearing		1,456,138	1,548,624
Transaction deposits		0	0
Time deposits		0	0
Securities sold under agreement to repurchase		0	0
Federal funds purchased		0	0
Subordinated debentures		0	0
FHLB advances		0	0
Accrued interest payable		1,912	2,094
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents		0	0
HTM debt securities		188,249	210,192
Federal Home Loan Bank stock		21,603	16,236
Loans, net		0	0
Accrued interest receivable		0	0
Non-interest bearing		0	0
Transaction deposits		4,472,475	4,138,847
Time deposits		1,236,463	976,841
Securities sold under agreement to repurchase		162,967	152,991
Federal funds purchased		6,525	12,852
Subordinated debentures		26,346	26,746
FHLB advances		294,848	200,047
Accrued interest payable		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents		0	0
HTM debt securities		0	0
Federal Home Loan Bank stock		0	0
Loans, net		6,256,752	5,520,059
Accrued interest receivable		0	0
Non-interest bearing		0	0
Transaction deposits		0	0
Time deposits		0	0
Securities sold under agreement to repurchase		0	0
Federal funds purchased		0	0
Subordinated debentures		0	0
FHLB advances		0	0
Accrued interest payable		$ 0	$ 0

[1] Includes $0 and $597 thousand in brokered deposits as of December 31, 2024 and 2023, respectively.