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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies 1 (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Estimated Insurance Recoveries $ 15 $ 20  
Revenue, Remaining Performance Obligation, Amount 55    
Advertising Expense 3 2 $ 2
Other Noncurrent Assets [Member]      
Estimated Insurance Recoveries 12 18  
Other Current Assets [Member]      
Estimated Insurance Recoveries $ 3 $ 2  
Minimum [Member]      
Revenue Recognition, Payment Terms (Day) 30 days    
Maximum [Member]      
Revenue Recognition, Payment Terms (Day) 60 days    
Software and Software Development Costs [Member] | Minimum [Member]      
Property, Plant and Equipment, Useful Life (Year) 3 years    
Software and Software Development Costs [Member] | Maximum [Member]      
Property, Plant and Equipment, Useful Life (Year) 10 years    
Equipment Subject To Operating Leases [Member] | Minimum [Member]      
Property, Plant and Equipment, Useful Life (Year) 3 years    
Equipment Subject To Operating Leases [Member] | Maximum [Member]      
Property, Plant and Equipment, Useful Life (Year) 7 years