XML 10 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Document And Entity Information - shares
 9 Months Ended
Oct. 31, 2025
Dec. 03, 2025
Document Information Line Items    
Entity Central Index Key 0000744187  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Oct. 31, 2025  
Document Fiscal Year Focus 2025  
Document Transition Report false  
Entity File Number 001-09097  
Entity Registrant Name REX AMERICAN RESOURCES CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 31-1095548  
Entity Address, Address Line One 7720 Paragon Road  
Entity Address, City or Town Dayton  
Entity Address, State or Province OH  
Entity Address, Postal Zip Code 45459  
City Area Code 937  
Local Phone Number 276-3931  
Title of 12(b) Security Common stock, $0.01 par value  
Trading Symbol REX  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   32,937,718
Amendment Flag false  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --01-31