v3.26.1
Cover - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2025
Nov. 24, 2025
Mar. 31, 2025
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description As previously disclosed in a Current Report on Form 8-K, filed with the Securities and Exchange Commission (“SEC”) on May 6, 2026, on April 30, 2026, a special committee (the “Special Committee”) composed of independent directors of the Board of Directors of the Company (the “Board”) terminated the employment of the Company’s former Chief Executive Officer (“CEO”) for Cause (as defined in the Employment Agreement, dated as of June 27, 2013, between the Company and its former CEO, as amended and restated), effective immediately for, among other things, conduct that the Special Committee believed was inconsistent with Company policy. As a result of the review by the Special Committee, management, in consultation with the Audit Committee of the Board (the “Audit Committee”), concluded that there was a material weakness in internal control over financial reporting that existed at September 30, 2025. Accordingly, the Company’s internal control over financial reporting as of September 30, 2025, as reported in its Annual Report on Form 10-K for the fiscal year ended September 30, 2025 (the “Original Form 10-K”) was not effective. In addition, the Company’s disclosure controls and procedures were not effective as of September 30, 2025, due to the material weakness in internal control over financial reporting as described above.  The reassessment of the effectiveness of the Company’s disclosure controls and procedures and its internal control over financial reporting described above did not result in any misstatement in the Company’s previously issued annual consolidated financial statements for the year ended September 30, 2025, included in the Original Form 10-K. As a result, the Company is not restating its annual consolidated financial statements contained in Item 8 of this Amendment.   The Company is filing this Amendment No. 1 (this “Amendment”) to the Original Form 10-K solely to amend the following:     ● Item 8. “Financial Statements and Supplementary Data” of the Original Form 10-K is amended and restated to (1) restate Grant Thornton LLP’s opinion on the Company’s internal control over financial reporting and (2) update Grant Thornton LLP’s unqualified opinion on the Company’s consolidated financial statements to refer to its restated opinion on the Company’s internal control over financial reporting;    ●Item 9A. “Controls and Procedures” of the Original Form 10-K is amended and restated to reflect the ineffective disclosure controls and procedures and internal control over financial reporting as of September 30, 2025 as a result of the material weakness discussed therein; and   ●Item 15. “Exhibits, Financial Statement Schedules” of the Original Form 10-K is amended and restated to reflect the new certifications and consent referenced below.   This Amendment also includes the following exhibits to replace exhibits previously filed:   ●new currently dated certifications (as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended) , by the Company’s principal executive officer and principal financial officer; and   ●a new consent from Grant Thorton LLP.  Except as described in this Explanatory Note, this Amendment does not amend, modify or update disclosures included in the Original Form 10-K, nor does it reflect events occurring after the filing of the Original Form 10-K. Among other things, business-related disclosures, risk factors and forward-looking statements made in the Original Form 10-K have not been revised to reflect events that occurred or facts that became known to the Company after the filing of the Original Form 10-K, and any such statements should be read in their historical context. Accordingly, this Amendment should be read in conjunction with the Company’s filings with the SEC that were made subsequent to the filing of the Original Form 10-K and this Amendment.      
Document Annual Report true    
Document Transition Report false    
Document Period End Date Sep. 30, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Current Fiscal Year End Date --09-30    
Entity File Number 001-37606    
Entity Registrant Name ANAVEX LIFE SCIENCES CORP.    
Entity Central Index Key 0001314052    
Entity Tax Identification Number 98-0608404    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 630 5th Avenue    
Entity Address, Address Line Two 20th Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Country US    
Entity Address, Postal Zip Code 10111    
City Area Code 844    
Local Phone Number 689-3939    
Title of 12(b) Security Common Stock Par Value $0.001    
Trading Symbol AVXL    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 708,000
Entity Common Stock, Shares Outstanding   89,348,107  
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Auditor Name GRANT THORNTON LLP    
Auditor Location Melville, New York    
Auditor Firm ID 248