Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2020
Mar. 31, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Current Fiscal Year End Date --12-31    
Entity File Number 000-12627    
Entity Registrant Name Global Clean Energy Holdings, Inc.    
Entity Central Index Key 0000748790    
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, Address Line Three 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 Public Float     $ 20,591,000
Entity Common Stock, Shares Outstanding   37,436,875