v3.26.1
Note 7 - Employee Benefit Plans (Details Textual) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Pension Plan [Member]      
Defined Benefit Plan, Plan Assets, Contributions by Employer $ 0.1 $ 0.5  
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year 0.3    
Supplemental Employee Retirement Plan [Member]      
Defined Benefit Plan, Plan Assets, Contributions by Employer 0.6 $ 0.6  
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year 0.6    
Defined Benefit Plan, Benefit Obligation $ 13.8   $ 14.0