Annual report pursuant to Section 13 and 15(d)

Geographic Information (Details)

v3.8.0.1
Geographic Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 79,660 $ 72,414
United States and Foreign    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 79,660 72,414
Long-lived Assets 43,252 42,798
United States:    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 74,604 67,703
Long-lived Assets 43,104 42,529
United States: | Owned restaurants    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 58,654 54,068
Long-lived Assets 37,907 37,723
United States: | Owned food, beverage and other operations    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 10,227 9,880
Long-lived Assets 5,088 4,477
United States: | Managed and licensed operations    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 5,723 3,755
Long-lived Assets 109 329
Foreign:    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 5,056 4,711
Long-lived Assets 148 269
Foreign: | Owned restaurants    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 0 0
Long-lived Assets 0 0
Foreign: | Owned food, beverage and other operations    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 0 0
Long-lived Assets 0 0
Foreign: | Managed and licensed operations    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 5,056 4,711
Long-lived Assets $ 148 $ 269