Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Aug. 01, 2018
Document And Entity Information    
Entity Registrant Name LIXTE BIOTECHNOLOGY HOLDINGS, INC.  
Entity Central Index Key 0001335105  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   58,025,814
Trading Symbol LIXT  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2018