Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Nov. 08, 2018
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol CLXT  
Entity Registrant Name CALYXT, INC.  
Entity Central Index Key 0001705843  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Smaller reporting company false  
Emerging growth company true  
Entity Extended Transition Period false  
Entity Common Stock, Shares Outstanding   32,572,359