Note 6 - Fair Value Measurements (Details Textual) $ in Thousands |
6 Months Ended | 12 Months Ended |
|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | $ 0 | $ 0 |
| Aethir (ATH) [Member] | Minimum [Member] | Measurement Input, Discount Rate [Member] | ||
| Embedded Derivative Asset, Measurement Input | 0.20 | 0.30 |
| Aethir (ATH) [Member] | Maximum [Member] | Measurement Input, Discount Rate [Member] | ||
| Embedded Derivative Asset, Measurement Input | 0.45 | 0.55 |