Note 13 - Acquisition of Lew Thompson & Trucking, Inc - Pro Forma Consolidated Results of Operations (Details) - Lew Thompson & Son Trucking, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Total revenue	$ 279,421	$ 562,485
Net income	$ 12,976	$ 31,659
Basic net income per share (in dollars per share)	$ 1	$ 2.41
Diluted net income per share (in dollars per share)	$ 0.96	$ 2.3

Note 13 - Acquisition of Lew Thompson & Trucking, Inc - Pro Forma Consolidated Results of Operations (Details) - Lew Thompson & Son Trucking, Inc. [Member] - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2023

Total revenue

$ 279,421

$ 562,485

Net income

$ 12,976

$ 31,659

Basic net income per share (in dollars per share)

$ 1

$ 2.41

Diluted net income per share (in dollars per share)

$ 0.96

$ 2.3