| Cover | Feb. 01, 2024 |
| Cover [Abstract] | |
| Entity Registrant Name | Mastermind, Inc. |
| Entity Central Index Key | 0001088638 |
| Document Type | 8-K |
| Amendment Flag | false |
| Current Fiscal Year End Date | --09-30 |
| Entity Emerging Growth Company | false |
| Document Period End Date | Feb. 01, 2024 |
| Entity File Number | 000-26533 |
| Entity Incorporation State Country Code | NV |
| Entity Tax Identification Number | 82-3807447 |
| Entity Address Address Line 1 | 2221 Peachtree Rd. NE |
| Entity Address Address Line 2 | STE D-134 |
| Entity Address City Or Town | Atlanta |
| Entity Address State Or Province | GA |
| Entity Address Postal Zip Code | 30309 |
| City Area Code | 678 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Local Phone Number | 420-4000 |
