Note 11 - Benefit Plan (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% | 3.00% |
| Defined Contribution Plan, Cost | $ 500,000 | $ 500,000 |
| Defined Contribution Plan, Administrative Expense | $ 30,000 | $ 38,000 |