| Cover | Mar. 28, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 28, 2024 |
| Entity File Number | 001-41988 |
| Entity Registrant Name | IB ACQUISITION CORP. |
| Entity Central Index Key | 0001998781 |
| Entity Tax Identification Number | 85-2946784 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 1200 N Federal Highway, Suite 215 |
| Entity Address, Address Line Two | Suite 215 |
| Entity Address, City or Town | Boca Raton |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33432 |
| City Area Code | (214) |
| Local Phone Number | 687-0020 |
| 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 |
| Units Each Consisting Of One Share Of Common Stock 0. 0001 Par Value And One Right [Member] | |
| Title of 12(b) Security | Units, each consisting of one share of common stock, $0.0001 par value, and one right |
| Trading Symbol | IBACU |
| Security Exchange Name | NASDAQ |
| Shares Of Common Stock Par Value 0. 0001 Per Share [Member] | |
| Title of 12(b) Security | Shares of common stock, par value $0.0001 per share |
| Trading Symbol | IBAC |
| Security Exchange Name | NASDAQ |
| Rights Each Entitling Holder To Receive Onetwentieth Of One Share Of Common Stock [Member] | |
| Title of 12(b) Security | Rights, each entitling the holder to receive one-twentieth of one share of common stock |
| Trading Symbol | IBACR |
| Security Exchange Name | NASDAQ |
