Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.19.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2019
Apr. 26, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name SYROS PHARMACEUTICALS, INC.  
Trading Symbol SYRS  
Entity Central Index Key 0001556263  
Document Type 10-Q  
Document Period End Date Mar. 31, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   42,434,780
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Entity Small Business true  
Entity Ex Transition Period true  
Entity Emerging Growth Company true