Note 8 - Employee Benefit Plans - Change in Benefit Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan, Fair Value of Plan Assets, Balance	$ 16,940
Defined Benefit Plan, Fair Value of Plan Assets, Balance	15,179	$ 16,940
Pension Plan [Member]
Defined Benefit Plan, Fair Value of Plan Assets, Balance	16,940	15,576
Defined Benefit Plan, Benefit Obligation, Balance	14,663	13,263
Actual return on plan assets	(1,520)	351
Interest cost	662	665
Employer contributions	575	622
Actuarial loss (gain)	(1,760)	479
Benefits paid	(565)	(563)
Currency translation adjustment	(251)	954
Currency translation adjustment	(211)	819
Defined Benefit Plan, Fair Value of Plan Assets, Balance	15,179	16,940
Defined Benefit Plan, Benefit Obligation, Balance	$ 12,789	$ 14,663

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation 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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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.

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