Note 24 - Fair Value of Financial Instruments - Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial Assets:
Securities	$ 890,751	$ 1,021,061
Other Equity Securities	37,467	16,619
Reported Value Measurement [Member]
Financial Assets:
Cash and Short-Term Investments	168,346	295,419
Securities	890,751	1,021,061
Loans Held for Sale	304	1,200
Loans - Net	4,567,998	3,160,496
Servicing Rights	1,712	1,403
Cash Value of BOLI	91,958	60,380
Other Equity Securities	37,467	16,619
Total	5,758,536	4,556,578
Financial Liabilities:
Deposits	4,820,345	4,077,283
Borrowings	560,123	187,590
Total	5,380,468	4,264,873
Estimate of Fair Value Measurement [Member]
Financial Assets:
Cash and Short-Term Investments	168,346	295,419
Securities	890,751	1,021,061
Loans Held for Sale	304	1,200
Loans - Net	4,443,577	3,121,433
Servicing Rights	2,327	1,775
Cash Value of BOLI	91,958	60,380
Other Equity Securities	37,467	16,619
Total	5,634,730	4,517,887
Financial Liabilities:
Deposits	4,810,263	4,078,558
Borrowings	544,564	195,998
Total	5,354,827	4,274,556
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and Short-Term Investments	168,346	295,419
Securities	0	0
Loans Held for Sale	0	0
Loans - Net	0	0
Servicing Rights	0	0
Cash Value of BOLI	0	0
Other Equity Securities	0	0
Total	168,346	295,419
Financial Liabilities:
Deposits	0	0
Borrowings	0	0
Total	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Cash and Short-Term Investments	0	0
Securities	836,983	976,971
Loans Held for Sale	304	1,200
Loans - Net	0	0
Servicing Rights	2,327	1,775
Cash Value of BOLI	91,958	60,380
Other Equity Securities	0	0
Total	931,572	1,040,326
Financial Liabilities:
Deposits	0	0
Borrowings	544,564	195,998
Total	544,564	195,998
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and Short-Term Investments	0	0
Securities	53,768	44,090
Loans Held for Sale	0	0
Loans - Net	4,443,577	3,121,433
Servicing Rights	0	0
Cash Value of BOLI	0	0
Other Equity Securities	37,467	16,619
Total	4,534,812	3,182,142
Financial Liabilities:
Deposits	4,810,263	4,078,558
Borrowings	0	0
Total	$ 4,810,263	$ 4,078,558