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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 15, 2022
Jun. 30, 2021
Document Information Line Items      
Entity Registrant Name Mawson Infrastructure Group, Inc.    
Trading Symbol MIGI    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   71,580,295  
Entity Public Float     $ 339,300,000
Amendment Flag false    
Entity Central Index Key 0001218683    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-40849    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 88-0445167    
Entity Address, Address Line One Level 5    
Entity Address, Address Line Two 97 Pacific Highway    
Entity Address, City or Town North Sydney    
Entity Address, Country AU    
Entity Address, Postal Zip Code 2060    
City Area Code +61 2    
Local Phone Number 8624 6130    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Auditor Firm ID 6714    
Auditor Name Anthony Rose    
Auditor Location Sydney, NSW, Australia