v3.26.1
Note 5 - Concentration of Investments (Details Textual)
Dec. 31, 2025
Dec. 31, 2024
EBP 95-3520374 001 [Member] | EBP, Employer, Common Stock [Member]    
EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Net Assets, Percentage 14.00% 17.00%