Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Narrative)(Details)

v3.7.0.1
Long-Term Debt (Narrative)(Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2016
Dec. 27, 2015
Credit facility maximum borrowing capacity $ 25,000  
Long-term debt $ 0 $ 0
Credit facility maturity date Oct. 30, 2020  
Line of Credit Facility Additional Borrowing Capacity $ 25,000  
Revolving Credit Facility [Member]    
Letters of credit borrowing capacity $ 5,000  
Revolving Credit Facility [Member] | Federal Funds Rate [Member]    
Basis spread on variable rate 0.50%  
Revolving Credit Facility [Member] | Base Rate [Member]    
Basis spread on variable rate 1.00%