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Note 11 - Related Party Transactions (Details Textual)					1 Months Ended	4 Months Ended	8 Months Ended	12 Months Ended
Note 11 - Related Party Transactions (Details Textual)	Sep. 02, 2022 shares	Aug. 23, 2022 USD ($) $ / shares shares	Oct. 25, 2021 shares	Aug. 21, 2020 USD ($) $ / shares	Oct. 31, 2022 shares	Dec. 31, 2020 USD ($) shares	Aug. 21, 2020 USD ($) $ / shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Aug. 22, 2022 shares	May 31, 2022 USD ($)	Aug. 22, 2020 USD ($)
Additional paid-in capital								$ (1,008,896,000)	$ (617,489,000)			$ (562,054,000)
Contingent Value Rights Agreement, Additional Shares, Preferred Simple Annual Return				10.00%			10.00%
Contingent Value Rights Agreement, Floor Downside Per Share \| $ / shares				$ 4.00			$ 4.00
Share Price \| $ / shares				$ 10.00			$ 10.00
Contingent Value Rights Agreement, Preferred Returns, Maximum Common Stock per CVR				2.125			2.125
Common Stock, Capital Shares Reserved for Future Issuance \| shares						21,694,763				21,694,763
Registration Rights Agreement, Minimum Registrable Securities, If Not All Registratable				$ 25,000,000			$ 25,000,000
Registration Rights Agreement, Minimum Demand of Registration				$ 5,000,000			5,000,000
Proceeds from Issuance of Private Placement						$ 0	$ 0	85,000,000	0
Stock Issued During Period, Shares, New Issues \| shares	3,933,376		2,530,000		2,530,000
Stock Issued During Period, Value, New Issues								$ 85,000,000	22,837,000
Private Placement [Member]
Forward Purchase Units Issued During the Period				8,976,875
Proceeds from Issuance of Private Placement				$ 89,800,000
Subscription Arrangement [Member]
Share Price \| $ / shares		$ 21.61
Stock Issued During Period, Shares, New Issues \| shares		2,855,162
Stock Issued During Period, Value, New Issues		$ 61,700,000
Principal Stockholders Group Owns At Least Thirty Five Percent Original Shares [Member]
Stockholders' Agreement, Board Nomination, Minimum Percentage of Original Shares Owned				35.00%			35.00%
Stockholders' Agreement, Board Nomination, Original Shares, Outstanding Voting Securities				30.00%			30.00%
Principal Stockholders Group Owns At Least Twenty Five Percent Original Shares [Member]
Stockholders' Agreement, Board Nomination, Minimum Percentage of Original Shares Owned				25.00%			25.00%
Stockholders' Agreement, Board Nomination, Original Shares, Outstanding Voting Securities				25.00%			25.00%
Principal Stockholders Group Owns at Least Fifteen Percent Original Shares [Member]
Stockholders' Agreement, Board Nomination, Minimum Percentage of Original Shares Owned				15.00%			15.00%
Stockholders' Agreement, Board Nomination, Original Shares, Outstanding Voting Securities				15.00%			15.00%
Principal Stockholders Group Owns At Least Five Percent Original Shares [Member]
Stockholders' Agreement, Board Nomination, Minimum Percentage of Original Shares Owned				500.00%			500.00%
Stockholders' Agreement, Board Nomination, Original Shares, Outstanding Voting Securities				750.00%			750.00%
Right to Appoint Representative to Serve On Each Committee, Excluding Audit Committee [Member]
Stockholders' Agreement, Board Nomination, Minimum Percentage of Original Shares Owned				20.00%			20.00%
Stockholders' Agreement, Board Nomination, Original Shares, Outstanding Voting Securities				7.50%			7.50%
Chief Financial Officer [Member] \| Subscription Arrangement [Member]
Stock Issued During Period, Shares, New Issues \| shares		9,255
President [Member] \| Subscription Arrangement [Member]
Stock Issued During Period, Shares, New Issues \| shares		46,276
Chief Operating Officer [Member] \| Subscription Arrangement [Member]
Stock Issued During Period, Shares, New Issues \| shares		23,138
Chief Executive Officer [Member] \| Subscription Arrangement [Member]
Stock Issued During Period, Shares, New Issues \| shares		462,749
John Paul DeJoria Family Trust [Member] \| Subscription Arrangement [Member]
Stock Issued During Period, Shares, New Issues \| shares		2,313,744
Conversion of Accounts Payable to Common Stock [Member]
Debt Conversion, Original Debt, Amount				$ 9,500,000
Pure [Member]
Additional paid-in capital				13,700,000			$ 13,700,000					13,699,000
HPK, LP [Member]
Additional paid-in capital												$ 0
Common Stock [Member]
Stock Issued During Period, Shares, New Issues \| shares								3,933,000
Stock Issued During Period, Value, New Issues								$ 0	$ 1,000
High Peak Business Combination [Member] \| Common Stock [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				91,592,354
High Peak Business Combination [Member] \| Common Stock [Member] \| Chief Financial Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				5,000
High Peak Business Combination [Member] \| Common Stock [Member] \| President [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				16,802
High Peak Business Combination [Member] \| Common Stock [Member] \| Chief Operating Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				14,000
High Peak Business Combination [Member] \| Warrants [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				10,538,183
High Peak Business Combination [Member] \| Warrants [Member] \| Chief Financial Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				5,000
High Peak Business Combination [Member] \| Warrants [Member] \| President [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				20,382
High Peak Business Combination [Member] \| Warrants [Member] \| Chief Operating Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				14,000
High Peak Business Combination [Member] \| Contingent Value Right [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				10,209,300
High Peak Business Combination [Member] \| Contingent Value Right [Member] \| Chief Financial Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				5,000
High Peak Business Combination [Member] \| Contingent Value Right [Member] \| President [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				16,802
High Peak Business Combination [Member] \| Contingent Value Right [Member] \| Chief Operating Officer [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				14,000
HighPeak Energy Employees, Inc [Member]
Business Combination, Consideration Transferred, Total				$ 10.00
Pure Acquisition [Member] \| Conversion of Pure's Class A Common Stock Into HighPeak Energy Common Stock [Member]
Business Combination, Conversion of Stock, Cash Issued \| $ / shares				$ 0.62
Business Combination, Conversion of Stock, Minimum Redemption Value for Cash Issuance \| $ / shares				$ 10.00			$ 10.00
Business Combination, Conversion of Stock, Cash Issued Total				$ 767,902
Pilot Exploration Inc. [Member]
Supply Commitment, Minimum Barrels of Produced Water											29,200,000
Supply Commitment, Amount Committed											$ 4,400,000
HighPeak I and HighPeak II [Member] \| High Peak Business Combination [Member] \| Common Stock [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 76,383,054
President of HighPeak [Member]
Stock Issued During Period, Shares, New Issues \| shares			45,454
Water Treatment Services [Member] \| Pilot Exploration Inc. [Member]
Related Party Transaction, Amounts of Transaction								2,000,000.0
Water Treatment Services [Member] \| Pilot Exploration Inc. [Member] \| Flat Top Operating Area [Member]
Related Party Transaction, Amounts of Transaction								$ 1,600,000
Reimbursement of Costs Incurred by Management Company [Member] \| HighPeak I and HighPeak II [Member] \| HPK, LP [Member] \| General and Administrative Expense [Member]
Related Party Transaction, Amounts of Transaction							$ 4,700,000
Reimbursement of Costs Incurred by Management Company [Member] \| HighPeak I [Member] \| HPK, LP [Member]
Related Party Transaction, Amounts of Transaction							$ 2,400,000