v3.26.1
Cover - shares
6 Months Ended
Jun. 30, 2026
Aug. 13, 2026
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 001-43210  
Entity Registrant Name GREENLAND ENERGY COMPANY  
Entity Central Index Key 0002093507  
Entity Tax Identification Number 39-4828593  
Entity Incorporation, State or Country Code TX  
Entity Address, Address Line One 3400 East Bayaud Avenue  
Entity Address, Address Line Two Suite 400  
Entity Address, City or Town Denver  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80209  
City Area Code 918  
Local Phone Number 361-7000  
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  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   43,730,194
Common Stock 0. 0001 Par Value Per Share [Member]    
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol GLND  
Security Exchange Name NASDAQ  
Common Warrants To Purchase Common Stock [Member]    
Title of 12(b) Security Warrants to purchase Common Stock  
Trading Symbol GLNDW  
Security Exchange Name NASDAQ