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Note 6 - Long-term Debt and Capital Leases (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 03, 2013
USD ($)
May. 14, 2012
USD ($)
May. 31, 2016
Mar. 01, 2016
Sep. 01, 2015
USD ($)
Dec. 01, 2015
USD ($)
Dec. 02, 2014
USD ($)
Jun. 02, 2015
USD ($)
Senior Notes [Member]                
Debt Instrument, Maturity Date               May 15, 2020
Debt Instrument, Cumulative Sinking Fund Payments               $ 0
Long-term Debt           $ 209,670,000   209,182,000
Debt Instrument, Face Amount   $ 250,000,000            
Debt Instrument, Interest Rate, Stated Percentage   7.625%            
Debt Instrument, Unamortized Discount   $ 3,700,000       1,981,000   $ 2,162,000
Debt Instrument, Term   8 years            
Redemption Price Percentage on Principal Amount               100.00%
Debt Instrument Repurchased Amount Authorized           20,000,000    
Mortgages [Member] | Minimum [Member]                
Range of Loan Balances           600,000    
Mortgages [Member] | Maximum [Member]                
Range of Loan Balances           7,100,000    
Mortgages [Member]                
Long-term Debt               $ 8,300,000
Secured Debt           $ 22,000,000    
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum           7.60%    
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum           10.17%    
Repayments of Long-term Debt         $ 8,300,000      
Revolving Credit Facility [Member] | Federal Funds Rate [Member]                
Debt Instrument, Basis Spread on Variable Rate 0.50%              
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate 1.00%              
Revolving Credit Facility [Member] | Eurodollar [Member] | Minimum [Member]                
Debt Instrument, Basis Spread on Variable Rate 2.50%              
Revolving Credit Facility [Member] | Eurodollar [Member] | Maximum [Member]                
Debt Instrument, Basis Spread on Variable Rate 3.50%              
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]                
Debt Instrument, Basis Spread on Variable Rate 1.50%              
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]                
Debt Instrument, Basis Spread on Variable Rate 2.50%              
Revolving Credit Facility [Member] | Minimum [Member]                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.40%              
Revolving Credit Facility [Member] | Maximum [Member]                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.75%              
Revolving Credit Facility [Member] | Scenario, Forecast [Member]                
Line of Credit Facility, Maximum Leverage Ratio     4.4 4.5        
Line of Credit Facility, Minimum Fixed Charge Coverage Ratio     1.6 1.55        
Revolving Credit Facility [Member]                
Long-term Line of Credit           $ 0    
Debt Instrument, Term 4 years              
Line of Credit Facility, Current Borrowing Capacity $ 50,000,000              
Option to Increase Revolving Credit Facility Capacity $ 35,000,000              
Credit Facility Interest Rate, Floor 0.00%              
Debt Instrument, Collateral Amount, Appraised Value $ 101,400,000              
Debt Instrument, Collateral Amount           78,700,000    
Line of Credit Facility, Remaining Borrowing Capacity           $ 38,300,000    
Line of Credit Facility, Maximum Leverage Ratio           4.5    
Line of Credit Facility, Minimum Fixed Charge Coverage Ratio           1.5    
Sub-limit for Standby Letters of Credit [Member]                
Line of Credit Facility, Current Borrowing Capacity $ 25,000,000              
Rent and Other Line Item [Member]                
Interest Payable, Current           $ 1,000,000   1,100,000
Debt Instrument, Repurchase Amount           0    
Long-term Debt           231,726,000   240,889,000
Number of Restaurants 49              
Secured Debt           22,023,000   $ 31,607,000
Repayments of Long-term Debt           $ 9,601,000 $ 6,266,000  
Payments of Debt Extinguishment Costs         $ 900,000      
Number of Properties Released for Collateral Purposes with the Repayment of Debt         26