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Note 8 - Employee Benefit Plans - Defined Benefit Pension Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest cost	$ 358	$ 391
Expected return on plan assets	(675)	(733)
Net amortization loss	551	105
Recognition of net loss due to settlements	115	22
Net periodic benefit cost (credit)	$ 349	$ (215)

X

- Definition

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

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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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