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Note 8 - Employee Benefit Plans - Recognized in Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Fair value of plan assets $ 15,179 $ 16,940  
Pension Plan [Member]      
Fair value of plan assets 15,179 16,940 $ 15,576
Other long-term assets 2,390 2,277  
Benefit obligation 12,789 14,663 $ 13,263
Accumulated other comprehensive loss 6,143 5,909  
Net funded status 2,390 2,277  
Pension Plan [Member] | Other Noncurrent Liabilities [Member]      
Other long-term assets 2,390 2,277  
Net funded status $ 2,390 $ 2,277