Quarterly report pursuant to Section 13 or 15(d)

Nonconsolidated variable interest entities (Details Textual)

v3.8.0.1
Nonconsolidated variable interest entities (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Bagatelle NY LA Investors, LLC (Bagatelle Investors) [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Ownership Percentage 31.24%   31.24%
Bagatelle Little West 12th, LLC (Bagatelle NY) [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Ownership Percentage 51.13%   51.13%
One 29 Park LLC [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity Method Investment, Ownership Percentage 10.00%   10.00%
Management Fees Revenue $ 100,000 $ 100,000  
Other than Temporary Impairment Losses, Investments 0    
Gain (Loss) on Sale of Investments 200,000    
Noncontrolling Interest in Variable Interest Entity 600,000    
Bagatelle La Cienega, LLC (Bagatelle LA) [Member]      
Schedule of Equity Method Investments [Line Items]      
Management Fees Revenue 37,000 $ 48,000  
Due from Related Parties, Current $ 43,000   $ 100,000