v3.26.1
Cover
 6 Months Ended
Mar. 31, 2026
Entity Addresses [Line Items]  
Document Type S-1/A
Amendment Flag true
Amendment Description AMENDMENT NO. 1 TO
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2026
Entity Registrant Name VisionWave Holdings, Inc.
Entity Central Index Key 0002038439
Entity Tax Identification Number 99-5002777
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 300 Delaware Avenue
Entity Address, Address Line Two Suite 210 #301
Entity Address, City or Town Wilmington
Entity Address, State or Province DE
Entity Address, Postal Zip Code 19801
City Area Code 302
Local Phone Number 305.4790
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 300 Delaware Avenue
Entity Address, Address Line Two Suite 210 #301
Entity Address, City or Town Wilmington
Entity Address, State or Province DE
Entity Address, Postal Zip Code 19801
City Area Code 302
Local Phone Number 305.4790
Contact Personnel Name Douglas Davis