Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 06, 2019
Document and Entity Information [Abstract]    
Entity Registrant Name ONE GROUP HOSPITALITY, INC.  
Entity Central Index Key 0001399520  
Trading Symbol stks  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Current Reporting Status Yes  
Amendment Flag false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   28,872,952