Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Balance	$ 77,219	$ 66,674
Unrealized holding gains, net of tax	2,366	2,873
Unrealized holding losses transferred from held to maturity to available for sale	0	(340)
Reclassification adjustment	(32)	(1)
Total other comprehensive income	2,674	2,532
Change in fair value of cash flow hedges, net of tax	340	0
Balance	84,916	77,219
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Balance	724	(1,808)
Unrealized holding gains, net of tax	2,366	2,873
Unrealized holding losses transferred from held to maturity to available for sale		(340)
Reclassification adjustment	(32)	(1)
Total other comprehensive income	2,334	2,532
Change in fair value of cash flow hedges, net of tax	0
Balance	3,058	724
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	0	0
Unrealized holding gains, net of tax	0	0
Unrealized holding losses transferred from held to maturity to available for sale		0
Reclassification adjustment	0	0
Total other comprehensive income	340	0
Change in fair value of cash flow hedges, net of tax	340
Balance	340	0
AOCI Attributable to Parent [Member]
Balance	724	(1,808)
Unrealized holding gains, net of tax	2,366	2,873
Unrealized holding losses transferred from held to maturity to available for sale		(340)
Reclassification adjustment	(32)	(1)
Total other comprehensive income	2,674	2,532
Change in fair value of cash flow hedges, net of tax	340
Balance	$ 3,398	$ 724

Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

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