Note 22 - Parent Company Financial Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 34,428	$ 43,526	$ 30,045
Net amortization of securities	(1,646)	(1,846)	(1,186)
Net change in other assets	(2,484)	245	(3,421)
Net change in other liabilities	2,677	146	(2,387)
Net cash provided by operating activities	47,941	51,095	20,226
Net cash provided by investing activities	(227,580)	(162,527)	(267,448)
Common stock dividends paid	(12,144)	(11,827)	(11,842)
Repurchase of common stock	(7,505)	(8,810)	(4,981)
Proceeds from exercise of stock options	12	89	43
Net cash used in financing activities	(253,839)	249,630	536,260
Net increase (decrease) in cash and cash equivalents	(433,478)	138,198	289,038
Parent Company [Member]
Net income	34,428	43,526	30,045
(Equity in earnings) of subsidiary	(20,678)	(29,616)	(6,802)
Net amortization of securities	0	10	0
Net change in other assets	(876)	27	84
Net change in other liabilities	109	102	85
Net cash provided by operating activities	12,983	14,049	23,412
Sales, cal1s and maturities of equity securities	0	6,800	0
Net cash provided by investing activities	0	6,800	0
Common stock dividends paid	(12,144)	(11,827)	(11,842)
Repurchase of common stock	(7,505)	(8,810)	(4,981)
Proceeds from exercise of stock options	12	89	43
Net change in subordinated debt	0	(7,500)	0
Net cash used in financing activities	(19,637)	(28,048)	(16,780)
Net increase (decrease) in cash and cash equivalents	(6,654)	(7,199)	6,632
Cash and cash equivalents at beginning of period	10,560	17,759	11,127
Cash and cash equivalents at end of period	$ 3,906	$ 10,560	$ 17,759