Note 3 - Revenue Recognition - Expected Timing of Performance Obligations (Details) (Parentheticals) |
Jun. 30, 2026 |
|---|---|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01 | |
| Performance obligation, period (Year) | 1 year |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | |
| Performance obligation, period (Year) | 1 year |