Cover - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 29, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2023
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity File Number	000-08187
Entity Registrant Name	NEW CONCEPT ENERGY, INC.
Entity Central Index Key	0000105744
Entity Tax Identification Number	75-2399477
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	1603 LBJ Freeway
Entity Address, Address Line Two	Suite 800
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75234
City Area Code	(972)
Local Phone Number	407-8400
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	GBR
Security Exchange Name	NYSE
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			$ 4,559,000
Entity Common Stock, Shares Outstanding		5,131,934
Documents Incorporated by Reference [Text Block]	NONE
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Auditor Firm ID	1820
Auditor Name	Swalm & Associates, P.C.
Auditor Location	Richardson, Texas