Note 15 - Accumulated Other Comprehensive Income (Loss) - Changes in AOCI (Details) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Net unrealized gains (losses) on securities available for sale, tax	$ 6,662
Net unrealized gains on cash flow hedges, tax	$ 396	$ 374
AOCI Attributable to Parent [Member]
Net unrealized gains (losses) on securities available for sale, tax		1,271
Net unrealized gains on cash flow hedges, tax		$ 374

Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e640-108580

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration