v3.21.2
Cover Page - shares
 9 Months Ended
Sep. 30, 2021
Nov. 11, 2021
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2021  
Document Transition Report false  
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, State or Province FL  
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 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 Shell Company false  
Entity Central Index Key 0001743745  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   80,467,462
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   21,800,270