Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Mar. 01, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
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    
Entity Well-known Seasoned Issuer No    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Common Stock, Shares Outstanding   49,376,160  
Entity Public Float     $ 5,446,012
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity File Number 001-38161    
Entity Tax Identification Number 27-1967997    
Entity Address, Address Line One 2800 Mount Ridge Road    
Entity Address, City or Town Roseville    
Entity Address, State or Province MN    
Entity Address, Postal Zip Code 55113-1127    
City Area Code 651    
Local Phone Number 683-2807    
Entity Interactive Data Current Yes    
Title of 12(b) Security Common Stock ($(0.0001 par value)    
Security Exchange Name NASDAQ    
Entity Incorporation, State or Country Code DE    
Document Annual Report true    
Document Transition Report false    
Documents Incorporated by Reference
The information required by Part III of this Annual Report on Form
to the extent not set forth herein, is incorporated herein by reference from the registrant’s definitive proxy statement relating to the registrant’s Annual Meeting of Stockholders to be held in 2023, which definitive proxy statement shall be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Annual Report on Form
Auditor Firm ID 42    
Auditor Name Ernst & Young LLP    
Auditor Location Minneapolis, Minnesota    
Amendment Description The Company has prepared this Amendment No. 1 (“Amendment”) on Form 10-K/A to amend its Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “Original Form 10-K”), which was originally filed on March 2, 2023. This Amendment is being filed solely to correct an inadvertent misstatement of the certifying period contained in the certifications on Exhibit 32. The revised certification is currently dated, refers to the correct certifying period and is included as an exhibit to this Amendment. Currently dated Exhibit 31 certifications are also included. Except as described above, the Company has not modified or updated disclosures made in the Original Form 10-K in this Amendment. Accordingly, this Amendment does not reflect events occurring after the filing of the Original Form 10-K or modify or update any disclosures affected by subsequent events.