| Cover | Jul. 31, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | This Form 8-K/A is being filed to supplement the disclosure that Atlas Financial Holdings, Inc. provided in its Form 8-K filed on August 20, 2024 with respect to a change in the Company's certifying accountant. |
| Document Period End Date | Jul. 31, 2024 |
| Entity File Number | 001-35816 |
| Entity Registrant Name | Atlas Financial Holdings, Inc. |
| Entity Central Index Key | 0001539894 |
| Entity Tax Identification Number | 27-5466079 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 953 American Lane |
| Entity Address, Address Line Two | 3rd Floor |
| Entity Address, City or Town | Schaumburg |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60173 |
| City Area Code | 847 |
| Local Phone Number | 472-6700 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
