Note 11 - Business Segments - Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues	$ 3,838,257	$ 3,144,812	$ 11,164,377	$ 8,671,331
Operating Segments [Member]
Revenues	3,845,000	3,154,000	11,193,000	8,701,000
Operating Segments [Member] | JBI [Member]
Revenues	1,837,000	1,413,000	5,273,000	3,879,000
Operating Segments [Member] | DCS [Member]
Revenues	894,000	665,000	2,498,000	1,866,000
Operating Segments [Member] | ICS [Member]
Revenues	591,000	666,000	1,890,000	1,799,000
Operating Segments [Member] | JBT [Member]
Revenues	274,000	204,000	807,000	537,000
Operating Segments [Member] | FMS [Member]
Revenues	249,000	206,000	725,000	620,000
Intersegment Eliminations [Member]
Revenues	$ (7,000)	$ (9,000)	$ (29,000)	$ (30,000)