| Cover | Aug. 15, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 15, 2023 |
| Entity File Number | 1-40790 |
| Entity Registrant Name | Bannix Acquisition Corp. |
| Entity Central Index Key | 0001845942 |
| Entity Tax Identification Number | 86-1626016 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 8265 West Sunset Blvd. |
| Entity Address, Address Line Two | Suite # 107 |
| Entity Address, City or Town | West Hollywood |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90046 |
| City Area Code | (323) |
| Local Phone Number | 682-8949 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Stock, par value $0.01 per share | |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | BNIX |
| 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 | BNIXW |
| Security Exchange Name | NASDAQ |
| One Right to receive 1/10 | |
| Title of 12(b) Security | One Right to receive 1/10 |
| Trading Symbol | BNIXR |
| Security Exchange Name | NASDAQ |
