Note 12 - Stock-based Compensation - Stock Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
|
| Stock based compensation | $ 285 | $ 514 | $ 660 | $ 938 |
| Selling and Marketing Expense [Member] | ||||
| Stock based compensation | 6 | 76 | 58 | 140 |
| Research and Development Expense [Member] | ||||
| Stock based compensation | 81 | 131 | 171 | 213 |
| General and Administrative Expense [Member] | ||||
| Stock based compensation | $ 198 | $ 307 | $ 431 | $ 585 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|