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Note 13 - Retirement Plans (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Retirement Plan Expense |  | $ 2,500 | $ 2,200 | $ 1,800
Defined Contribution Plan [Member] |  |  |  |
Company Matching Percentage on First Eight Percent of Employee Contributions |  | 50.00% |  |
Employee Contribution Percentage for Which Company Will Match at Fifty Percent |  | 8.00% |  |
ParkUSA Defined Contribution Plan [Member] |  |  |  |
Company Matching Percentage on First Eight Percent of Employee Contributions | 100.00% |  |  |
Employee Contribution Percentage for Which Company Will Match at One Hundred Percent | 4.00% |  |  |
Pension Plan [Member] |  |  |  |
Number of Non-contributory Defined Benefit Plans |  | 2 |  |
Assets for Plan Benefits, Defined Benefit Plan |  | $ 500 | 100 |
Accumulated Other Comprehensive Income (Loss), Unrecognized Net Actuarial Losses, Net of Tax |  | 1,200 | 1,500 |
Defined Benefit Plan, Accumulated Benefit Obligation |  | 4,600 | 4,800 |
Defined Benefit Plan, Plan Assets, Amount |  | 5,100 | 4,900 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) |  | $ 0 | $ 100 | $ 100
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate |  | 4.69% | 4.89% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets |  | 7.00% | 7.00% |
Non-qualified Retirement Savings Plan [Member] | Other Long-term Liabilities [Member] |  |  |  |
Deferred Compensation Liability, Classified, Noncurrent |  | $ 3,900 | $ 3,600 |

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