0001012019 2026-05-13 2026-05-13 0001012019 rusha:ClassACommonStock001ParValueCustomMember 2026-05-13 2026-05-13 0001012019 rusha:ClassBCommonStock001ParValueCustomMember 2026-05-13 2026-05-13 false 0001012019 8-K 2026-05-13 Rush Enterprises, Inc. TX 0-20797 74-1733016 555 IH-35 South, Suite 500 New Braunfels TX 78130 830 302-5200 false false false false Class A Common Stock, $0.01 par value RUSHA NASDAQ Class B Common Stock, $0.01 par value RUSHB NASDAQ false