| Cover | Jul. 10, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | NOBLE ROMAN’S, INC. |
| Entity Central Index Key | 0000709005 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | false |
| Document Period End Date | Jul. 10, 2023 |
| Entity Incorporation State Country Code | IN |
| Entity Tax Identification Number | 35-1281154 |
| Written Communications | false |
| Soliciting Material | true |
| Entity File Number | 0-11104 |
| Entity Address Address Line 1 | 6612 E |
| Entity Address Address Line 2 | 75th Street |
| Entity Address Address Line 3 | Suite 450 |
| Entity Address City Or Town | Indianapolis |
| Entity Address State Or Province | IN |
| Entity Address Postal Zip Code | 46250 |
| City Area Code | 317 |
| Local Phone Number | 634-3377 |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
