Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 31, 2019
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Trading Symbol OSS  
Entity Registrant Name One Stop Systems, Inc.  
Entity Central Index Key 0001394056  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Current Reporting Status Yes  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   15,516,646
Entity File Number 001-38371  
Entity Tax Identification Number 330885351  
Entity Address, Address Line One 2235 Enterprise Street #110  
Entity Address, City or Town Escondido  
Entity Address, State or Province California  
Entity Address, Postal Zip Code 92029  
City Area Code 877  
Local Phone Number 438-2724