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Note 21 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Unrealized holding gains (losses), tax	$ 764	$ (200)
Reclassification adjustment, tax	0	0
Unrealized holding gains (losses) on available for sale securities, tax	764	(200)
Unrealized holding losses transferred from held to maturity to available for sale, tax	(91)	0
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Unrealized holding gains (losses), tax	764	(200)
Reclassification adjustment, tax	0	0
Pension liability adjustment, tax		(27)
Unrealized holding gains (losses) on available for sale securities, tax	764	$ (200)
Unrealized holding losses transferred from held to maturity to available for sale, tax	$ (91)

X

- Definition

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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