| Cover | Sep. 20, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 20, 2024 |
| Entity File Number | 333-178651 |
| Entity Registrant Name | First Capital Real Estate Trust Incorporated |
| Entity Central Index Key | 0001536256 |
| Entity Tax Identification Number | 45-3770595 |
| Entity Incorporation, State or Country Code | MD |
| Entity Address, Address Line One | 120 E. Baltimore st. |
| Entity Address, Address Line Two | Suite 2100 |
| Entity Address, City or Town | Baltimore |
| Entity Address, State or Province | MD |
| Entity Address, Postal Zip Code | 21202 |
| City Area Code | 410 |
| Local Phone Number | 230-2300 |
| 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 |
