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Note 7 - Acquisition of Lew Thompson & Son Trucking, Inc. (Details Textual) - USD ($) $ in Thousands | Apr. 26, 2023 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Goodwill |  | $ 78,941 | $ 75,747
Lew Thompson & Son Trucking, Inc. [Member] |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 100.00% |  |
Business Combination, Consideration Transferred | $ 114,459 |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 30,000 |  |
Business Combination, Contingent Consideration, Earnout Period (Year) | 3 years |  |
Goodwill | $ 17,255 | $ 17,300 | $ 4,900
Lew Thompson & Son Trucking, Inc. [Member] | Stock Purchase Agreement, Earnout Component [Member] |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High | 30,000 |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low | 114,500 |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 134,500 |  |

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