Note 9 - Goodwill and Other Assets - Schedule of Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Balance, Goodwill	$ 58,217
Balance, Goodwill	75,747
Lew Thompson & Son Trucking, Inc. [Member]
Balance, Goodwill	12,400
Expedited [Member]
Balance, Goodwill	15,699
Post-acquisition goodwill adjustments	0
Balance, Goodwill	15,699
Expedited [Member] | Lew Thompson & Son Trucking, Inc. [Member]
Acquired goodwill	0
Expedited [Member] | Sims Transport Services, LLC [Member]
Acquired goodwill	0
Dedicated [Member]
Balance, Goodwill	15,320
Post-acquisition goodwill adjustments	1,718
Balance, Goodwill	27,767
Dedicated [Member] | Lew Thompson & Son Trucking, Inc. [Member]
Acquired goodwill	10,729
Dedicated [Member] | Sims Transport Services, LLC [Member]
Acquired goodwill	0
Managed Freight [Member]
Balance, Goodwill	5,448
Post-acquisition goodwill adjustments	0
Balance, Goodwill	10,531
Managed Freight [Member] | Lew Thompson & Son Trucking, Inc. [Member]
Acquired goodwill	0
Managed Freight [Member] | Sims Transport Services, LLC [Member]
Acquired goodwill	5,083
Warehousing [Member]
Balance, Goodwill	21,750
Post-acquisition goodwill adjustments	0
Balance, Goodwill	21,750
Warehousing [Member] | Lew Thompson & Son Trucking, Inc. [Member]
Acquired goodwill	0
Warehousing [Member] | Sims Transport Services, LLC [Member]
Acquired goodwill	$ 0