| Document And Entity Information | Oct. 23, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | CORECARD CORPORATION |
| Document, Type | 8-K |
| Document, Period End Date | Oct. 23, 2024 |
| Entity, Incorporation, State or Country Code | GA |
| Entity, File Number | 1-9330 |
| Entity, Tax Identification Number | 58-1964787 |
| Entity, Address, Address Line One | One Meca Way |
| Entity, Address, City or Town | Norcross |
| Entity, Address, State or Province | GA |
| Entity, Address, Postal Zip Code | 30093 |
| City Area Code | 770 |
| Local Phone Number | 381‑2900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | CCRD |
| Security Exchange Name | NYSE |
| Amendment Flag | false |
| Entity, Central Index Key | 0000320340 |
