| Cover | Feb. 07, 2025 |
| Cover [Abstract] | |
| Document Type | S-3 |
| Amendment Flag | false |
| Entity Registrant Name | Lantronix, Inc. |
| Entity Central Index Key | 0001114925 |
| Entity Address, Address Line One | 48 Discovery |
| Entity Address, Address Line Two | Suite 250 |
| Entity Address, City or Town | Irvine |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 92618 |
| City Area Code | (949) |
| Local Phone Number | 453-3990 |
| Entity Filer Category | Accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | false |
| Document Creation Date | Feb. 07, 2025 |
