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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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