Note 10 - Retirement Plans (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 72 | $ 80 | $ 159 | $ 166 |
| Other Postretirement Benefits Cost (Reversal of Cost) | 2 | 2 | 4 | 4 |
| Employee benefits | 583 | 531 | 1,277 | 913 |
| Supplemental Employee Retirement Plan [Member] | ||||
| Employee benefits | $ 59 | $ 65 | $ 118 | $ 130 |
| Profit Sharing Plan [Member] | ||||
| Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 4.00% | |||
| Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 100.00% | |||