Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2022
Apr. 24, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends the Annual Report on Form 10-K of Molecular Templates, Inc. (the “Company,” “we,” “our,” “us” or “Molecular”) for the fiscal year ended December 31, 2022, as originally filed with the Securities and Exchange Commission (the “SEC”) on March 30, 2023 (the “Original 10-K”). The purpose of this Amendment is to include information required by Part III of the Annual Report on Form 10-K that was intentionally omitted from Part III of the Original 10-K. In addition, this Amendment amends Item 15 of Part IV of the Original 10-K to update the exhibit list and to include new certifications by our principal executive officer and principal financial officer under Section 302 of the Sarbanes-Oxley Act of 2002, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Except as described above, no other changes have been made to the Original 10-K. The Original 10-K continues to speak as of the dates described in the Original 10-K, and we have not updated the disclosures contained therein to reflect any events that occurred subsequent to such dates. Accordingly, this Amendment should be read in conjunction with the Company’s filings made with the SEC subsequent to the filing of the Original 10-K, as information in such filings may update or supersede certain information contained in this Amendment. In this Amendment, unless the context specifically indicates otherwise, “the Company”, “we”, “us”, “our” and “MTEM” refer to Molecular Templates, Inc. and its subsidiaries following the Merger, effective on August 1, 2017, and to Private Molecular and its subsidiaries prior to the Merger. References to “Pre-Merger Threshold” means Threshold prior to the Merger effective on August 1, 2017.    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Registrant Name MOLECULAR TEMPLATES, INC.    
Entity Central Index Key 0001183765    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
ICFR Auditor Attestation Flag false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity File Number 001-32979    
Entity Incorporation State Country Code DE    
Entity Tax Identification Number 94-3409596    
Entity Address Address Line1 9301 Amberglen Blvd    
Entity Address, Address Line Two Suite 100    
Entity Address City Or Town Austin    
Entity Address State Or Province TX    
Entity Address Postal Zip Code 78729    
City Area Code 512    
Local Phone Number 869-1555    
Entity Public Float     $ 29,380,632
Entity Common Stock, Shares Outstanding   56,351,647  
Security12b Title Common Stock, $0.001 Par Value Per Share    
Trading Symbol MTEM    
Security Exchange Name NASDAQ    
Document Annual Report true    
Document Transition Report false    
Auditor Name Ernst & Young LLP    
Auditor Firm ID 42    
Auditor Location Austin, Texas    
Documents Incorporated by Reference