Promissory Notes (Details Narrative) - USD ($) |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Feb. 26, 2026 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Sep. 30, 2024 |
Sep. 30, 2024 |
Jun. 30, 2026 |
Sep. 30, 2025 |
Apr. 28, 2025 |
|
| Subsidiary, Sale of Stock [Line Items] | ||||||||||
| Principal amount | $ 1,003,995 | $ 1,003,995 | $ 1,003,995 | |||||||
| Balance of reverse | 1,003,995 | 1,003,995 | ||||||||
| Promissory note balance | $ 1,003,995 | 1,003,995 | $ 0 | $ 0 | $ 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 | 233,678 | 1,333,333 | ||||||||
| Exercise price per share | $ 18.00 | $ 18.00 | $ 18.00 | $ 0.001 | ||||||
| Amortization of Debt Issuance Costs and Discounts | $ 10,411,665 | |||||||||
| Legal Fees | 25,000 | |||||||||
| Warrants | $ 6,986,665 | 6,986,665 | ||||||||
| Repaid On YaIi Pn Note | 780,461 | |||||||||
| Payments of Debt Issuance Costs | 16,293 | $ 0 | 1,727,334 | $ 1,727,334 | ||||||
| Interest expense | 2,192,375 | 2,334,917 | $ 0 | $ 59,327 | ||||||
| Loan payable | $ 10,000,000 | 10,000,000 | ||||||||
| Adrian Note [Member] | ||||||||||
| Subsidiary, Sale of Stock [Line Items] | ||||||||||
| Interest expense | $ 279,452 | |||||||||
| Warrant [Member] | ||||||||||
| Subsidiary, Sale of Stock [Line Items] | ||||||||||
| Exercise price per share | $ 9.00 | $ 9.00 | ||||||||