Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 03, 2022	Jun. 30, 2021
Document Information [Line Items]
Entity Central Index Key	0001792849
Entity Registrant Name	HighPeak Energy, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	333-39464
Entity Incorporation, State or Country Code	DE
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
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Public Float			$ 48,747,167
Entity Common Stock, Shares Outstanding		96,822,600
Auditor Name	WEAVER AND TIDWELL, L.L.P.
Auditor Location	Fort Worth, TX
Auditor Firm ID	410
ICFR Auditor Attestation Flag	false
Warrant [Member]
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase Common Stock
Trading Symbol	HPKEW
Security Exchange Name	NASDAQ
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	HPK
Security Exchange Name	NASDAQ