Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Feb. 15, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Trading Symbol AIRG    
Entity Registrant Name AIRGAIN, INC.    
Entity Central Index Key 0001272842    
Current Fiscal Year End Date --12-31    
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 Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity File Number 001-37851    
Entity Tax Identification Number 95-4523882    
Entity Address, Address Line One 3611 Valley Centre Drive    
Entity Address, Address Line Two Suite 150    
Entity Address, City or Town San Diego    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92130    
City Area Code 760    
Local Phone Number 579-0200    
Entity Common Stock, Shares Outstanding   10,351,873  
Entity Public Float     $ 105
Document Annual Report true    
Document Transition Report false    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Security Exchange Name NASDAQ    
Entity Incorporation, State or Country Code DE    
ICFR Auditor Attestation Flag false