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Note 16 - Components of Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net pension gain (loss) arising during the period, taxes	$ 862	$ (393)
Amortization of prior service cost included in net periodic pension cost, tax	(2)	(23)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Unrealized holding gain (loss) on available for sale securities, tax	(2,740)	3,502
Reclassification adjustment for gain included in net income, taxes	(1)	(23)
AOCI Attributable to Parent [Member]
Unrealized holding gain (loss) on available for sale securities, tax	(2,740)	3,502
Reclassification adjustment for gain included in net income, taxes	(1)	$ (23)
Net pension gain (loss) arising during the period, taxes	862
Amortization of prior service cost included in net periodic pension cost, tax	(2)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Net pension gain (loss) arising during the period, taxes	862
Amortization of prior service cost included in net periodic pension cost, tax	$ (2)

X

- Definition

Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

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-Publisher FASB
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-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
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+ References

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