Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.20.4
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2020
Mar. 11, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Registrant Name Xenetic Biosciences, Inc.    
Entity Central Index Key 0001534525    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Public Float     $ 6,136,160
Entity Common Stock, Shares Outstanding   8,746,692  
Current Reporting Status Yes    
Well known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Small Business true    
Entity Emerging Growth false    
Entity Interactive Data Current Yes    
Entity Shell Company false    
Entity Incorporation State Country Code NV    
Entity File Number 001-37937