XML 20 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Mar. 31, 2023
Jun. 30, 2022
Document Information Line Items      
Entity Registrant Name GREENLAND TECHNOLOGIES HOLDING CORPORATION    
Trading Symbol GTEC    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   12,978,504  
Entity Public Float     $ 35,100,000
Amendment Flag false    
Entity Central Index Key 0001735041    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Shell Company false    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 000-38605    
Entity Incorporation, State or Country Code D8    
Entity Tax Identification Number 00-0000000    
Entity Address, Address Line One 50 Millstone Road    
Entity Address, Address Line Two Building 400 Suite 130    
Entity Address, City or Town East Windsor    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 08512    
City Area Code 1 (888)    
Local Phone Number 827-4832    
Title of 12(b) Security Ordinary shares, no par value    
Security Exchange Name NASDAQ    
Entity Interactive Data Current Yes    
Auditor Name WWC, P.C    
Auditor Location San Mateo, California    
Auditor Firm ID 1171