XML 35 R1.htm IDEA: XBRL DOCUMENT v2.4.1.9
Document and Entity Information
 3 Months Ended
Mar. 31, 2015
May 05, 2015
Document and Entity Information    
Entity Registrant Name INCOME OPPORTUNITY REALTY INVESTORS INC /TX/  
Entity Trading Symbol IOT  
Document Type 10-Q  
Document Period End Date Mar. 31, 2015  
Amendment Flag false  
Entity Central Index Key 0000949961  
Current Fiscal Year End Date --12-31  
Entity Common Stock, Shares Outstanding   4,168,214dei_EntityCommonStockSharesOutstanding
Entity Filer Category Smaller Reporting Company  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer No  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q1