v3.25.2
Document And Entity Information
Jun. 13, 2025
Document Information [Line Items]  
Entity, Registrant Name Rush Enterprises, Inc.
Document, Type 8-K
Document, Period End Date Jun. 13, 2025
Entity, Incorporation, State or Country Code TX
Entity, File Number 0-20797
Entity, Tax Identification Number 74-1733016
Entity, Address, Address Line One 555 IH-35 South
Entity, Address, Address Line Two Suite 500
Entity, Address, City or Town New Braunfels
Entity, Address, State or Province TX
Entity, Address, Postal Zip Code 78130
City Area Code 830
Local Phone Number 302-5200
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0001012019
ClassACommonStock Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class A Common Stock
Trading Symbol RUSHA
Security Exchange Name NASDAQ
ClassBCommonStock Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class B Common Stock
Trading Symbol RUSHB
Security Exchange Name NASDAQ