Document And Entity Information
 9 Months Ended
Sep. 30, 2021
Document Information Line Items  
Entity Registrant Name SPHERE 3D CORP.
Document Type F-4
Amendment Flag false
Entity Central Index Key 0001591956
Entity Emerging Growth Company false
Entity Incorporation, State or Country Code A6
Entity Tax Identification Number 98-1220792
Entity Address, Address Line One 895 Don Mills Road, Bldg. 2, Suite 900
Entity Address, Address Line Two Toronto
Entity Address, Country CA
Entity Address, Postal Zip Code M3C 1W3
City Area Code (858)
Local Phone Number 571-5555
Business Contact  
Document Information Line Items  
Entity Address, Address Line One 500 Seventh Avenue
Entity Address, Address Line Two Office 12B101
Entity Address, Postal Zip Code 10018
City Area Code (917)
Local Phone Number 566-7046
Contact Personnel Name CCS Global Solutions, Inc.
Entity Address, City or Town New York
Entity Address, State or Province NY