Annual report pursuant to Section 13 and 15(d)

Note 2 - Summary of Significant Accounting Policies (Details Textual)

v3.7.0.1
Note 2 - Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2014
USD ($)
Mar. 25, 2018
USD ($)
Dec. 25, 2016
USD ($)
Dec. 27, 2015
USD ($)
Dec. 28, 2014
USD ($)
Dec. 29, 2013
USD ($)
Advertising Contributions from Franchisees     $ 1,300 $ 1,400 $ 1,200  
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation     378 743 1,868  
Cash and Cash Equivalents, at Carrying Value     3,788 3,095 4,301 $ 10,586
Payments of Financing Costs     0 0 0  
Amortization of Debt Issuance Costs     421 421 421  
Revenue Recognition, Gift Cards, Breakage     2,600 2,400 2,600  
Franchise Revenue     17,301 16,661 15,763  
Advertising Expense     6,600 6,500 6,100  
Payments to Acquire Businesses, Gross     2,800  
Ruths Chris Steak House [Member]            
Payments to Acquire Businesses, Gross $ 2,800          
Franchised Units [Member] | International [Member]            
Number of Restaurants     20      
Franchise Operations [Member] | International [Member]            
Franchise Revenue     $ 2,900 3,000 $ 3,200  
Equipment [Member]            
Property, Plant and Equipment, Useful Life     5 years      
Accounts Payable and Accrued Payroll [Member] | Outstanding Checks [Member]            
Cash and Cash Equivalents, at Carrying Value       $ 4,500    
Minimum [Member] | Building and Building Improvements [Member]            
Property, Plant and Equipment, Useful Life     20 years      
Minimum [Member] | Furniture and Fixtures [Member]            
Property, Plant and Equipment, Useful Life     5 years      
Minimum [Member] | Computer Equipment [Member]            
Property, Plant and Equipment, Useful Life     3 years      
Minimum [Member] | Leasehold Improvements [Member]            
Property, Plant and Equipment, Useful Life     5 years      
Minimum [Member] | Accounting Standards Update 2014-09 [Member] | Scenario, Forecast [Member] | Increase in Deferred Revenue Liability [Member]            
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification   $ 3,000        
Maximum [Member] | Building and Building Improvements [Member]            
Property, Plant and Equipment, Useful Life     40 years      
Maximum [Member] | Furniture and Fixtures [Member]            
Property, Plant and Equipment, Useful Life     7 years      
Maximum [Member] | Computer Equipment [Member]            
Property, Plant and Equipment, Useful Life     5 years      
Maximum [Member] | Leasehold Improvements [Member]            
Property, Plant and Equipment, Useful Life     20 years      
Maximum [Member] | Accounting Standards Update 2014-09 [Member] | Scenario, Forecast [Member] | Increase in Deferred Revenue Liability [Member]            
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification   $ 6,000