| Document and Entity Information | Nov. 14, 2022 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 14, 2022 |
| Entity File Number | 001-35314 |
| Entity Registrant Name | eGain Corporation |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 77-0466366 |
| Entity Address, Address Line One | 1252 Borregas Avenue |
| Entity Address, City or Town | Sunnyvale |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94089 |
| City Area Code | 408 |
| Local Phone Number | 636-4500 |
| 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 $0.001 per share |
| Trading Symbol | EGAN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001066194 |
| Amendment Flag | false |
