Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2022
Jun. 30, 2021
Cover [Abstract]        
Document Type 10-K      
Amendment Flag false      
Document Annual Report true      
Document Transition Report false      
Document Period End Date Dec. 31, 2021      
Document Fiscal Year Focus 2021      
Document Fiscal Period Focus FY      
Current Fiscal Year End Date --12-31      
Entity Registrant Name GLOBAL CLEAN ENERGY HOLDINGS, INC.      
Entity Central Index Key 0000748790      
Entity File Number 000-12627      
Entity Tax Identification Number 87-0407858      
Entity Incorporation, State or Country Code DE      
Entity Address, Address Line One 2790 Skypark Drive      
Entity Address, Address Line Two Suite 105      
Entity Address, City or Town Torrance      
Entity Address, State or Province CA      
Entity Address, Postal Zip Code 90505      
City Area Code 310      
Local Phone Number 641-4234      
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 Common Stock, Shares Outstanding     42,223,933  
ICFR Auditor Attestation Flag false      
Entity Public Float       $ 156,453,000
Auditor Name GRANT THORNTON LLP Macias Gini & O’Connell LLP    
Auditor Firm ID 248 324    
Auditor Location Kansas City, Missouri Irvine, CA