Note 4 - Related Party Transactions (Details Textual)					1 Months Ended		2 Months Ended	12 Months Ended
	Apr. 17, 2018 USD ($) $ / shares shares	Apr. 13, 2018 USD ($)	Jan. 05, 2018 USD ($)	Nov. 13, 2017 USD ($) $ / shares shares	Apr. 30, 2018 USD ($) $ / shares shares	Mar. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) shares	Dec. 16, 2017 USD ($)
Sale of Stock, Price Per Share | $ / shares	$ 10
Stock Issued During Period, Value, New Issues								$ 414,000,000
Number of Shares Transferred to Each Independent Director Nominees | shares						40,000
Number of Independent Directors						3
Number of Shares Transferred to Independent Director Nominees | shares						120,000
Founders' Shares, Stock Price Threshold to Relieve Trading Restrictions | $ / shares								$ 12
Proceeds from Notes Payable, Total								$ 200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	11.50
Number of Affiliates		1
Monthly Agreed Payment Amount to Related Party		$ 10,000
Payments for Administrative Services, Related Party								80,000
Accrued Payments for Administrative Services, Related Party								6,000
Proceeds from Issuance of Private Placement									$ 25,000
Business Combination Completion Period From Closing of Public Offering								1 year 180 days
Purchase Price of Public Warrant for Sponsor Committed to Offer or Cause Affiliate | $ / shares	$ 1							$ 1
Percentage of Public Shares Would Affect From Redemption Upon Meeting of Conditions of Business Combinations	100.00%
Warrant Price Transferred to Public Holders in Event of Business Combination Not Closed Within Allotted Time | $ / shares								1
Private Placement [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1							$ 1
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares	10,280,000							10,280,000
Maximum [Member]
Payment Period to Related Party		1 year 180 days						1 year 180 days
Maximum [Member] | Private Placement [Member]
Convertible Debt, Total								$ 1,500,000
Sponsor [Member]
Proceeds from Notes Payable, Total			$ 200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares								$ 1
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares								10,280,000
Business Combination Completion Period From Closing of Public Offering								1 year 180 days
Purchase Price of Public Warrant for Sponsor Committed to Offer or Cause Affiliate | $ / shares								$ 1
Percentage of Public Shares Would Affect From Redemption Upon Meeting of Conditions of Business Combinations								100.00%
Sponsor [Member] | Maximum [Member]
Notes Payable, Total										$ 200,000
HighPeak and the Sponsor [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 11.50							$ 11.50
Proceeds from Issuance of Private Placement	$ 10,280,000							$ 10,280,000
HighPeak and the Sponsor [Member] | Private Placement [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1				$ 10
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares	10,280,000				7,500,000
HighPeak and the Sponsor [Member] | Maximum [Member] | Private Placement [Member]
Aggregate Price Under Forward Purchase Agreement					$ 150,000,000
Affiliate Of Sponsor [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares					$ 1
Escrow Deposit					$ 20,700,000
Founders [Member]
Percentage of Founders Shares Remains Not Transferred Assigned Sold Subject to Certain Limited Exception								50.00%
Minimum Period Required to Transfer Assign Sale of Founders Shares After Date of Consummation of Initial Business Acquisition								1 year
Common Class B [Member]
Stock Issued During Period, Shares, New Issues | shares				10,062,500
Sale of Stock, Price Per Share | $ / shares				$ 0.002
Stock Issued During Period, Value, New Issues				$ 25,000
Common Stock Shares Forfeiture Cost						$ 0
Common Stock Shares Forfeiture | shares						1,437,500
Shares, Outstanding, Ending Balance | shares						8,625,000
Common Stock Dividend Rate, Percentage					20.00%
Common Stock, Shares, Outstanding, Ending Balance | shares					10,350,000		10,350,000	10,350,000	10,350,000
Equity Method Investment, Ownership Percentage								20.00%
Stock Issued During Period, Shares, Share-based Compensation, Forfeited | shares								0
Common Class A [Member]
Stock Issued During Period, Shares, New Issues | shares								41,400,000
Common Stock, Shares, Outstanding, Ending Balance | shares							0	0	0
Common Class A [Member] | HighPeak Energy Partners Limited Partners [Member] | Maximum [Member] | Private Placement [Member]
Stock Issued During Period, Shares, New Issues | shares					15,000,000