Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Feb. 24, 2020
Jun. 28, 2019
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
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 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   9,692,285  
Entity Public Float     $ 9.7
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