| Document And Entity Information | Oct. 17, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 17, 2022 |
| Entity Registrant Name | AIRGAIN, INC |
| Entity Central Index Key | 0001272842 |
| Entity Emerging Growth Company | false |
| Securities Act File Number | 001-37851 |
| Entity Incorporation, State or Country Code | DE |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | AIRG |
| Security Exchange Name | NONE |
