Note 16 - Other Comprehensive Income (Loss) - Cumulative Other Comprehensive Income (Loss) Balances (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance	$ 844,809	$ 731,417	$ 615,591
Changes in unrealized (losses) gains on debt securities available for sale, net of tax	(64,748)	88,361	66,047
Balance	827,102	844,809	731,417
AOCI Attributable to Parent [Member]
Balance	114,412	26,051	(39,996)
Balance	49,664	114,412	26,051
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Changes in unrealized (losses) gains on debt securities available for sale, net of tax	$ (64,748)	$ 88,361	$ 66,047

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details