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Cover - USD ($)
 12 Months Ended
Dec. 31, 2020
Mar. 19, 2021
Cover [Abstract]    
Document Type 10-K  
Amendment Flag false  
Document Period End Date Dec. 31, 2020  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2020  
Current Fiscal Year End Date --12-31  
Entity File Number 1-13810  
Entity Registrant Name Socket Mobile, Inc.  
Entity Central Index Key 0000944075  
Entity Tax Identification Number 94-3155066  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 39700 Eureka Drive  
Entity Address, City or Town Newark  
Entity Address, State or Province CA  
Entity Address, Country US  
Entity Address, Postal Zip Code 94560  
Local Phone Number (510) 933-3000  
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   $ 7,360,553
Entity Common Stock, Shares Outstanding   6,941,384