Annual report pursuant to Section 13 and 15(d)

Note 8 - Long-term Debt (Details Textual)

v3.7.0.1
Note 8 - Long-term Debt (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Feb. 02, 2017
Feb. 14, 2012
Dec. 25, 2016
Long-term Debt, Weighted Average Interest Rate     2.70%
Senior Credit Facility [Member]      
Long-term Line of Credit     $ 25.0
Line of Credit Facility, Remaining Borrowing Capacity     $ 70.9
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage     0.20%
Senior Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Amended And Restated Credit Agreement [Member]      
Debt Instrument, Basis Spread on Variable Rate   2.00%  
Senior Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Amended And Restated Credit Agreement [Member]      
Debt Instrument, Basis Spread on Variable Rate   2.75%  
Senior Credit Facility [Member] | Base Rate [Member] | Minimum [Member] | Amended And Restated Credit Agreement [Member]      
Debt Instrument, Basis Spread on Variable Rate   1.00%  
Senior Credit Facility [Member] | Base Rate [Member] | Maximum [Member] | Amended And Restated Credit Agreement [Member]      
Debt Instrument, Basis Spread on Variable Rate   1.75%  
Letter of Credit [Member]      
Letters of Credit Outstanding, Amount     $ 4.1
Long-term Debt, Weighted Average Interest Rate     2.13%
Line of Credit Facility, Maximum Borrowing Capacity   $ 100.0  
Letter of Credit [Member] | Credit Agreement [Member] | Wells Fargo Bank, National Association and Other Lenders [Member] | Subsequent Event [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 5.0    
Revolving Credit Facility [Member] | Credit Agreement [Member] | Wells Fargo Bank, National Association and Other Lenders [Member] | Subsequent Event [Member]      
Line of Credit Facility, Maximum Borrowing Capacity 90.0    
Line of Credit Facility, Maximum Borrowing Capacity upon Satisfaction of Certain Conditions $ 150.0    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread Added to Reference Rate to Compute Base Rate 1.00%    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.50%    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.25%    
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread on Variable Rate 0.50%    
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.25%    
Revolving Credit Facility [Member] | Prime Rate [Member] | Credit Agreement [Member] | Subsequent Event [Member]      
Debt Instrument, Basis Spread Added to Reference Rate to Compute Base Rate 0.50%    
Swingline Loans [Member] | Credit Agreement [Member] | Wells Fargo Bank, National Association and Other Lenders [Member] | Subsequent Event [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 5.0