The ONE Group Hospitality, Inc. Quarterly report pursuant to Section 13 or 15(d)

Geographic information (Details) (USD $)	3 Months Ended
Geographic information (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues - owned units	$ 9,725,301us-gaap_SalesRevenueGoodsNet	$ 8,153,892us-gaap_SalesRevenueGoodsNet
Management, incentive and royalty fee revenue	2,051,276us-gaap_SalesRevenueServicesNet	2,119,028us-gaap_SalesRevenueServicesNet
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues - owned units	9,725,302	8,153,892
Management, incentive and royalty fee revenue	1,918,964	1,658,578
Net assets (liabilities)	9,694,771		6,290,470
Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues - owned units	0	0
Management, incentive and royalty fee revenue	132,312	460,450
Net assets (liabilities)	$ 1,561,882		$ 890,464