| Cover | Mar. 15, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 15, 2023 |
| Entity File Number | 1-13906 |
| Entity Registrant Name | FG GROUP HOLDINGS INC. |
| Entity Central Index Key | 0000946454 |
| Entity Tax Identification Number | 47-0587703 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 5960 Fairview Road |
| Entity Address, Address Line Two | Suite 275 |
| Entity Address, City or Town | Charlotte |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28210 |
| City Area Code | (704) |
| Local Phone Number | 994-8279 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | FGH |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
| Entity Information, Former Legal or Registered Name | N/A |
