Cover - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Feb. 21, 2025
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--12-31
Entity File Number	1-32955
Entity Registrant Name	HOUSTON AMERICAN ENERGY CORP.
Entity Central Index Key	0001156041
Entity Tax Identification Number	76-0675953
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	801 Travis Street
Entity Address, Address Line Two	Suite 1425
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	(713)
Local Phone Number	222-6966
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	HUSA
Security Exchange Name	NYSEAMER
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	false
Entity Shell Company	false
Entity Public Float	$ 17,666,820.0
Entity Common Stock, Shares Outstanding		15,686,533
Documents Incorporated by Reference [Text Block]	Portions of the Company’s Proxy Statement for its 2025 Annual Meeting are incorporated by reference into Part III of this Report.
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Listing, Par Value Per Share	$ 0.001
Auditor Firm ID	688
Auditor Name	Marcum LLP
Auditor Location	Houston, Texas