v3.25.1
Cover
Jun. 09, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 09, 2025
Entity File Number 000-56075
Entity Registrant Name 4FRONT VENTURES CORP.
Entity Central Index Key 0001783875
Entity Tax Identification Number 83-4168417
Entity Incorporation, State or Country Code A1
Entity Address, Address Line One 11811 N. Tatum Blvd.
Entity Address, Address Line Two Suite 3031
Entity Address, City or Town Phoenix
Entity Address, State or Province AZ
Entity Address, Postal Zip Code 85028
City Area Code 602
Local Phone Number 428-5337
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false