Note 19 - Weighted-average Assumptions Used to Determine Benefit Obligation Amounts (Details)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. [Member]
Weighted Average Assumptions Used To Determine Benefit Obligation Amounts [Line Items]
Discount rate	2.54%	2.09%	2.97%
Salary increase rate	1.00%	3.50%	3.50%
Interest crediting rate for cash balance plan	2.00%	1.75%	2.50%
Non-US [Member]
Weighted Average Assumptions Used To Determine Benefit Obligation Amounts [Line Items]
Discount rate	1.48%	1.01%	1.44%
Salary increase rate	2.39%	1.56%	1.72%