Note 3 - Supplemental Financial Information 2 (Details Textual) - USD ($) $ in Millions |
Jun. 30, 2026 |
Apr. 13, 2026 |
|---|---|---|
| IEEPA Financing Arrangement, Liability | $ 6.6 | $ 6.6 |
| Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsPayableCurrent | ||
| IEEPA Financing Arrangement, Liability | 2.8 | |
| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent | ||
| IEEPA Financing Arrangement, Liability | $ 3.8 |