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Note 13 - Income Taxes (Details Textual) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Mar. 31, 2021
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%   21.00% 21.00% 21.00%  
Foreign Tax Authority [Member]            
Tax Adjustments, Settlements, and Unusual Provisions   $ 2        
Decrease in Net Deferred Tax Assets   $ 2        
Liability for Uncertainty in Income Taxes, Current           $ 3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total           $ 4