| Document And Entity Information | Nov. 18, 2021 |
| Document Information [Line Items] | |
| Entity, Registrant Name | HighPeak Energy, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Nov. 18, 2021 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 333-235313 |
| Entity, Tax Identification Number | 84-3533602 |
| Entity, Address, Address Line One | 421 W. 3rd St., Suite 1000 |
| Entity, Address, City or Town | Fort Worth |
| Entity, Address, State or Province | TX |
| Entity, Address, Postal Zip Code | 76102 |
| City Area Code | 817 |
| Local Phone Number | 850-9200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | true |
| Entity, Ex Transition Period | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001792849 |
| CommonStock Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | HPK |
| Security Exchange Name | NASDAQ |
| Warrant Custom [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrant |
| Trading Symbol | HPKEW |
| Security Exchange Name | NASDAQ |
