Promissory Notes (Details Narrative) - USD ($) |
3 Months Ended | 6 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Feb. 26, 2026 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 22, 2026 |
Apr. 10, 2026 |
Jan. 05, 2026 |
Sep. 30, 2025 |
Apr. 28, 2025 |
|
| Related Party Transaction [Line Items] | |||||||||||
| Principal amount | $ 1,003,995 | $ 1,003,995 | |||||||||
| Balance of reverse | 1,003,995 | ||||||||||
| Promissory note balance | $ 22,333,167 | 22,333,167 | $ 1,003,995 | ||||||||
| Letter Agreement description | On February 26, 2026, VisionWave Holdings Inc. (the “Company”) entered into a Letter Agreement (the “Letter Agreement”) with YA II PN, Ltd. (the “Investor”), pursuant to which the Investor agreed to provide the Company with a $20,000,000 senior loan (the “Loan”) on the terms and conditions set forth therein. The Loan is evidenced by a Promissory Note (the “YA II PN Note”) in the original principal amount of $20,000,000, bearing 0% interest per annum (increasing to 18% upon an Event of Default as defined therein). The Note was issued at an original issue discount of 15%, resulting in gross proceeds to the Company of $17,000,000 (prior to deduction of a $25,000 structuring and due diligence fee), or $16,975,000 net cash received. | ||||||||||
| Amortization payments | $ 2,500,000 | ||||||||||
| Shares issued | 1,333,333 | ||||||||||
| Exercise price per share | $ 18.00 | $ 18.00 | $ 0.001 | ||||||||
| Amortization of Debt Issuance Costs and Discounts | $ 10,411,665 | ||||||||||
| Legal Fees | 25,000 | ||||||||||
| [custom:Warrants-0] | $ 6,986,665 | 6,986,665 | |||||||||
| [custom:RepaidOnYaIiPnNote] | 8,779,809 | 9,560,270 | |||||||||
| Payments of Debt Issuance Costs | 12,877 | $ 0 | $ 6,333,616 | 4,606,282 | |||||||
| promissory notes | 22,333,167 | 22,333,167 | 1,003,995 | ||||||||
| Unamortized debt issuance cost | 4,078,049 | 4,078,049 | 0 | ||||||||
| Adrian note payment | $ 1,000,000 | ||||||||||
| Repayment of shares issued | 876,644 | ||||||||||
| Recognized a loss on disposal | 1,432,509 | ||||||||||
| Loss on disposal of investments | 552,697 | ||||||||||
| Interest expense | $ 5,230,404 | $ 7,565,321 | |||||||||
| Dream Note | $ 6,000,000 | ||||||||||
| Warrant [Member] | |||||||||||
| Related Party Transaction [Line Items] | |||||||||||
| Exercise price per share | $ 9.00 | $ 9.00 | |||||||||
| Evie [Member] | |||||||||||
| Related Party Transaction [Line Items] | |||||||||||
| Promissory note balance | $ 1,003,995 | $ 1,003,995 | |||||||||
| Y A I I P N Notes [Member] | |||||||||||
| Related Party Transaction [Line Items] | |||||||||||
| Shares issued | 1,856,383 | ||||||||||
| promissory notes | 6,761,681 | $ 6,761,681 | |||||||||
| Adrian Note [Member] | |||||||||||
| Related Party Transaction [Line Items] | |||||||||||
| promissory notes | 8,567,491 | 8,567,491 | |||||||||
| Interest expense | 285,074 | 564,526 | |||||||||
| Dream Note [Member] | |||||||||||
| Related Party Transaction [Line Items] | |||||||||||
| promissory notes | $ 6,000,000 | 6,000,000 | |||||||||
| Interest expense | $ 159,781 | ||||||||||