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Cover - USD ($)
 12 Months Ended
Jun. 30, 2022
Aug. 25, 2022
Dec. 31, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Jun. 30, 2022    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Current Fiscal Year End Date --06-30    
Entity File Number 1-16027    
Entity Registrant Name LANTRONIX, INC.    
Entity Central Index Key 0001114925    
Entity Tax Identification Number 33-0362767    
Entity Incorporation, State or Country Code DE    
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    
Title of 12(b) Security Common Stock, $0.0001 par value    
Trading Symbol LTRX    
Security Exchange Name NASDAQ    
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 Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 214,675,000
Entity Common Stock, Shares Outstanding   35,136,540  
Auditor Name Baker Tilly US, LLP    
Auditor Location California    
Auditor Firm ID 23