Cover Page
Cover Page - USD ($) | 12 Months Ended | ||
Dec. 31, 2022 | Apr. 27, 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 | ||
Entity Registrant Name | Meta Materials Inc. | ||
Entity Central Index Key | 0001431959 | ||
Entity Current Reporting Status | Yes | ||
Entity Voluntary Filers | No | ||
Entity Interactive Data Current | Yes | ||
Current Fiscal Year End Date | --12-31 | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Public Float | $ 371,634,314 | ||
Entity Common Stock, Shares Outstanding | 467,078,221 | ||
Entity Shell Company | false | ||
Entity Small Business | true | ||
Entity Emerging Growth Company | false | ||
ICFR Auditor Attestation Flag | false | ||
Title of 12(b) Security | Common Stock, par value $0.001 per share | ||
Trading Symbol | MMAT | ||
Security Exchange Name | NASDAQ | ||
Securities Act File Number | 001-36247 | ||
Entity Incorporation, State or Country Code | NV | ||
Entity Tax Identification Number | 74-3237581 | ||
Entity Address, Address Line One | 60 Highfield Park Drive | ||
Entity Address, City or Town | Dartmouth | ||
Entity Address, State or Province | NS | ||
Entity Address, Country | CA | ||
Entity Address, Postal Zip Code | B3A 4R9 | ||
City Area Code | 902 | ||
Local Phone Number | 482-5729 | ||
Document Annual Report | true | ||
Document Transition Report | false | ||
Auditor Firm ID | 85 | ||
Auditor Name | KPMG LLP | ||
Auditor Location | Vaughan, Canada |