Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
3 Months Ended
Mar. 31, 2022
May 13, 2022
Document and Entity Information    
Document Type 10-Q  
Document Period End Date Mar. 31, 2022  
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-12584  
Entity Registrant Name SYNTHETIC BIOLOGICS, INC.  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 13-3808303  
Entity Address, Address Line One 9605 Medical Center Drive, Suite 270  
Entity Address, City or Town Rockville  
Entity Address, Country MD  
Entity Address, Postal Zip Code 20850  
City Area Code 301  
Local Phone Number 417-4364  
Title of 12(b) Security Common Stock  
Trading Symbol SYN  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   158,437,840
Entity Central Index Key 0000894158  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q1  
Amendment Flag false