v3.26.1
Cover - shares
 6 Months Ended
Mar. 31, 2026
May 20, 2026
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --09-30  
Entity File Number 001-72741  
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 Ave.  
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 Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   25,387,727
Common Stock, par value $0.01 per share    
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol VWAV  
Security Exchange Name NASDAQ  
Redeemable Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50    
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50  
Trading Symbol VWAVW  
Security Exchange Name NASDAQ