Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.3.1.900
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2015
Mar. 01, 2016
Jun. 30, 2015
Document And Entity Information      
Entity Registrant Name LIXTE BIOTECHNOLOGY HOLDINGS, INC.    
Entity Central Index Key 0001335105    
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filer No    
Entity Current Reporting Status Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 3,072,615
Entity Common Stock, Shares Outstanding   45,575,814  
Trading Symbol LIXT    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2015