Note 19 - Weighted-average Assumptions Used to Determine Net Pension (Income) Expenses (Details) - Defined Benefit Plans [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. [Member]
Weighted Average Assumptions Used To Determine Net Pension Income Expenses [Line Items]
Effective rate for service cost	2.11%	2.97%	4.03%
Effective rate for interest cost	1.42%	2.58%	3.75%
Salary increase rate	3.50%	3.50%	3.50%
Expected long-term rate of return on plan assets	5.20%	6.00%	6.50%
Interest crediting rate for cash balance plan	1.75%	2.50%	2.50%
Non-US [Member]
Weighted Average Assumptions Used To Determine Net Pension Income Expenses [Line Items]
Effective rate for service cost	1.17%	1.48%	2.47%
Effective rate for interest cost	0.70%	1.19%	1.89%
Salary increase rate	1.56%	1.72%	2.06%
Expected long-term rate of return on plan assets	2.56%	3.27%	3.46%