General form of registration statement for all companies including face-amount certificate companies

Document and Entity Information

Document and Entity Information
3 Months Ended
Mar. 31, 2019
Document And Entity Information [Abstract]  
Document Type S-1/A
Amendment Flag true
Document Period End Date Mar. 31, 2019
Document Fiscal Year Focus 2019
Document Fiscal Period Focus Q1
Entity Registrant Name Xenetic Biosciences, Inc.
Entity Central Index Key 0001534525
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth false
Entity Transition Period false
Amendment Description Reverse stock split