Note 6 - Basic and Diluted Net Income (Loss) Per Share - Schedule of Dilutive Securities (Details) - shares shares in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares) | 10,403 | 9,008 |
| Common Stock Options and Warrants [Member] | ||
| Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares) | 9,244 | 7,731 |
| Debt with Conversion Feature [Member] | ||
| Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares) | 1,159 | 1,277 |