v3.25.3

Cover	Oct. 10, 2025
Cover [Abstract]
Document Type	8-K/A
Amendment Flag	true
Amendment Description	Explanatory Note
Document Period End Date	Oct. 10, 2025
Entity File Number	001-42403
Entity Registrant Name	Alpha Cognition Inc.
Entity Central Index Key	0001655923
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	A1
Entity Address, Address Line One	1452 Hughes Rd.
Entity Address, Address Line Two	Ste 200
Entity Address, City or Town	Grapevine
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76051
City Area Code	858
Local Phone Number	344-4375
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common Shares, no par value
Trading Symbol	ACOG
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false

Description of changes contained within amended document.

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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Address Line 1 such as Attn, Building Name, Street Name

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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Alpha Cognition Inc. 8-K/A