Note 11 - Liability for Employee Rights Upon Retirement (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Monthly Deposit Rate, Percent of Salary | 8.33% | 8.33% | ||
| Employee Benefits and Share-Based Compensation | $ 5 | $ 12 | $ 22 | $ 33 |