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Note 10 - Guarantees (Details Textual)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
a
Warranty Arrangement Period [Member]  
Guarantor Obligations [Line Items]  
Extended Warranty Period (Year) 1 year
Minimum [Member]  
Guarantor Obligations [Line Items]  
Environmental Settlement, Historical Liabilities Trigger Amount | $ $ 99
Extended Warranty Period (Year) 3 months
Maximum [Member]  
Guarantor Obligations [Line Items]  
Percentage of Liability Above 99 Million 50.00%
Extended Warranty Period (Year) 6 years
Eastman Business Park Rochester N Y [Member] | Minimum [Member]  
Guarantor Obligations [Line Items]  
Area of Real Estate Property (Acre) | a 1,200