v3.20.1
Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Apr. 20, 2020
Jun. 28, 2019
Cover [Abstract]      
Entity Incorporation, State or Country Code DE    
Entity File Number 001-38875    
Entity Tax Identification Number 83-0806637    
Entity Registrant Name Greenlane Holdings, Inc.    
Document Type 10-K/A    
Document Period End Date Dec. 31, 2019    
Entity Address, Postal Zip Code 33487    
City Area Code 877    
Local Phone Number 292-7660    
Title of 12(b) Security Class A Common Stock, $0.01 par value per share    
Trading Symbol GNLN    
Security Exchange Name NASDAQ    
Entity Emerging Growth Company true    
Entity Ex Transition Period true    
Entity Central Index Key 0001743745    
Amendment Flag true    
Entity Address, Address Line One 1095 Broken Sound Parkway,    
Entity Address, Address Line Two Suite 300    
Entity Address, City or Town Boca Raton,    
Entity Address, State or Province FL    
Document Information [Line Items]      
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Entity File Number 001-38875    
Entity Registrant Name Greenlane Holdings, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 83-0806637    
Entity Address, Address Line One 1095 Broken Sound Parkway,    
Entity Address, Address Line Two Suite 300    
Entity Address, City or Town Boca Raton,    
Entity Address, Postal Zip Code 33487    
Local Phone Number 292-7660    
City Area Code 877    
Title of 12(b) Security Class A Common Stock, $0.01 par value per share    
Trading Symbol GNLN    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer 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 true    
Entity Ex Transition Period true    
Entity Public Float     $ 95.0
Document Fiscal Year Focus 2019    
Entity Central Index Key 0001743745    
Amendment Flag true    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Entity Voluntary Filers No    
Entity Shell Company false    
Entity Address, State or Province FL    
Document Transition Report false    
Amendment Description Amendment filed to disclose reliance on the 45-day extension for filing Form 10-K provided by SEC order.    
Common Class A [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   10,347,026  
Common Class B [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   5,814,630  
Common Class C [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   77,791,218