XML 45 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Cover - shares
 3 Months Ended
Mar. 31, 2020
May 15, 2020
Cover [Abstract]    
Entity Registrant Name AMERICAN REALTY INVESTORS INC  
Entity Central Index Key 0001102238  
Document Type 10-Q  
Document Period End Date Mar. 31, 2020  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity File Number 001-15663  
Entity Incorporation, State Code NV  
Entity Reporting Status Current Yes  
Entity Interactive Data Current Yes  
Entity Small Business true  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   15,997,076
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2020