v3.26.3
Cover
12 Months Ended
Jun. 30, 2026
Entity Addresses [Line Items]  
Document Type S-1
Amendment Flag false
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2026
Entity Registrant Name Exascale Labs Holdings Inc.
Entity Central Index Key 0002109869
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 820 Gessner Road
Entity Address, Address Line Two Suite 332
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77024
City Area Code 650
Local Phone Number 537-7553
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 820 Gessner Road
Entity Address, Address Line Two Suite 332
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77024
City Area Code 650
Local Phone Number 537-7553
Contact Personnel Name Hoansoo Lee