v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Aug. 10, 2026
Document Information [Line Items]    
Document Type 10-Q  
Entity Registrant Name WHITEFIBER, INC.  
Entity Central Index Key 0002042022  
Amendment Flag false  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
Entity File Number 001-42780  
Entity Incorporation, State or Country Code E9  
Entity Tax Identification Number 61-2222606  
Entity Address, Address Line One 31 Hudson Yards  
Entity Address, Address Line Two Floor 11  
Entity Address, Address Line Three Suite 30  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10001  
City Area Code (646)  
Local Phone Number 801-0779  
Title of 12(b) Security Ordinary Shares, $0.01 par value  
Trading Symbol WYFI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   38,848,118