| Cover | Sep. 23, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 23, 2024 |
| Entity File Number | 001-41237 |
| Entity Registrant Name | DUET Acquisition Corp. |
| Entity Central Index Key | 0001890671 |
| Entity Tax Identification Number | 87-2744116 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | V03-11-02, Designer Office |
| Entity Address, Address Line Two | V03, Lingkaran SV |
| Entity Address, Address Line Three | Sunway Velocity |
| Entity Address, City or Town | Kuala Lumpur |
| Entity Address, Country | MY |
| Entity Address, Postal Zip Code | 55100 |
| City Area Code | +60-3 |
| Local Phone Number | 9201-1087 |
| 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 Class A Common Stock and one Redeemable Warrant | |
| Title of 12(b) Security | Units, each consisting of one share of Class A Common Stock and one Redeemable Warrant |
| Trading Symbol | DUETU |
| Security Exchange Name | NASDAQ |
| Class A Common Stock, $0.0001 par value per share | |
| Title of 12(b) Security | Class A Common Stock, $0.0001 par value per share |
| Trading Symbol | DUET |
| Security Exchange Name | NASDAQ |
| Redeemable Warrants, each warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share | |
| Title of 12(b) Security | Redeemable Warrants, each warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share |
| Trading Symbol | DUETW |
| Security Exchange Name | NASDAQ |
