Note 7 - Stock Compensation Plans (Details Textual) - Restricted Stock Units (RSUs) [Member] - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 29,744 | |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 1,600 | $ 1,100 |
| Share-Based Payment Arrangement, Expense | $ 338 | $ 265 |
| Vesting on February 15, 2026 [Member] | ||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 5,084 | |
| Three Year Vesting [Member] | ||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 24,660 | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | 5 years | |