Note 4 - Revenue 2 (Details Textual) $ in Millions	Dec. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Amount	$ 16.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Amount	$ 11.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Amount	$ 4.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year