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Note 17 - Employee Benefit Plans - Components of Pension Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Service cost	$ 1	$ 1	$ 3	$ 4
Interest cost on projected benefit obligation	329	380	987	1,139
Net amortizations, deferrals and other costs	158	174	474	521
Expected return on plan assets	(326)	(454)	(978)	(1,361)
Net periodic benefit cost	$ 162	$ 101	$ 486	$ 303

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

+ References

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

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