Annual report pursuant to Section 13 and 15(d)

Nonconsolidated variable interest entities - Narrative (Details)

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Nonconsolidated variable interest entities - Narrative (Details)
 12 Months Ended
Dec. 31, 2015
operating_restaurant_company
Dec. 31, 2014
Dec. 31, 2011
variable_interest_entity
Schedule of Equity Method Investments [Line Items]      
Number of entities formed | variable_interest_entity     3
Bagatelle Investors [Member]      
Schedule of Equity Method Investments [Line Items]      
Number of operating restaurant companies | operating_restaurant_company 2    
Equity method ownership interest (percent) 31.24% 31.24%  
Bagatelle NY [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity method ownership interest (percent) 5.23% 5.23%  
Indirect ownership interest (percent) 45.90% 45.90%  
Effective ownership interest (percent) 51.13% 51.13%  
Bagatelle LA [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity method ownership interest (percent) 5.23% 5.23%  
Indirect ownership interest (percent) 38.10% 38.10%  
Effective ownership interest (percent) 43.33% 43.33%  
One 29 Park, LLC [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity method ownership interest (percent) 10.00% 10.00%