| Document and Entity Information | Jun. 06, 2024 |
| Document And Entity Information [Line Items] | |
| Entity Tax Identification Number | 00-0000000 |
| Amendment Flag | false |
| Entity Central Index Key | 0001847355 |
| Document Type | 8-K |
| Document Period End Date | Jun. 06, 2024 |
| Entity Registrant Name | TARGET GLOBAL ACQUISITION I CORP. |
| Entity Incorporation State Country Code | E9 |
| Entity File Number | 001-41135 |
| Entity Address, Address Line One | PO Box 10176 |
| Entity Address, Address Line Two | Governor’s Square 23 |
| Entity Address, Address Line Three | Lime Tree Bay Avenue |
| Entity Address, City or Town | Grand Cayman |
| Entity Address, Region | Grand Cayman |
| Entity Address, Country | KY |
| Entity Address, Postal Zip Code | KY1-1102 |
| City Area Code | 345 |
| Local Phone Number | 814 5772 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Capital Unit, Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | TGAA |
| Security Exchange Name | NASDAQ |
| Redeemable Warrants Each Whole Warrant Exercisable For One Class A Ordinary Share At An Exercise Price Of 11.502 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 |
| Trading Symbol | TGAAW |
| Security Exchange Name | NASDAQ |
| Units Each Consisting Of One Class A Ordinary Share And One Third Of One Redeemable Warrant 1 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Units, each consisting of one Class A ordinary share and one-third of one redeemable warrant |
| Trading Symbol | TGAAU |
| Security Exchange Name | NASDAQ |
