Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2014
Mar. 30, 2015
Jun. 30, 2014
Document and Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Entity Registrant Name ONE Group Hospitality, Inc.    
Entity Central Index Key 0001399520    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY    
Entity Filer Category Smaller Reporting Company    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Common Stock, Shares Outstanding   24,940,195dei_EntityCommonStockSharesOutstanding  
Entity Public Float     $ 71,887,105dei_EntityPublicFloat