Note 4 - Fair Value Measurements - Schedule of Fair Value Liabilities With Unobservable Inputs (Details) (Parentheticals) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| The 2024 Convertible Notes [Member] | |
| Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Convertible Debt, Fair Value Adjustment |
| OID Notes [Member] | |
| Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Convertible Debt, Fair Value Adjustment |
| Total Notes [Member] | |
| Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Convertible Debt, Fair Value Adjustment |