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Note 13 - Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Interest cost		$ 17
Expected return on plan assets		8
Recognized net gain due to settlement		135
Net periodic benefit cost (benefit)		(126)
Net loss		126
Total recognized in other comprehensive income (loss)		126
Total Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss)

X

- Definition

Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss.

+ References

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-Name Accounting Standards Codification
-Topic 715
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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees.

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

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Amount, before tax, of gain (loss) 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.

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