0001012019 2025-05-20 2025-05-20 0001012019 rusha:ClassACommonStockParValue001PerShareCustomMember 2025-05-20 2025-05-20 0001012019 rusha:ClassBCommonStockParValue001PerShareCustomMember 2025-05-20 2025-05-20 false 0001012019 8-K 2025-05-20 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, par value $0.01 per share RUSHA NASDAQ Class B Common Stock, par value $0.01 per share RUSHB NASDAQ false