Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Aug. 01, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name SCYNEXIS INC  
Trading Symbol SCYX  
Entity Central Index Key 0001178253  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Document Type 10-Q  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   55,708,213
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 001-36365  
Entity Tax Identification Number 562181648  
Entity Address, Address Line One 1 Evertrust Plaza  
Entity Address, Address Line Two 13th Floor  
Entity Address, City or Town Jersey City  
Entity Address, State or Province New Jersey  
Entity Address, Postal Zip Code 07302-6548  
City Area Code 201  
Local Phone Number 884-5485