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Fair Value Measurements (Details) - USD ($)
Oct. 29, 2016
Jan. 30, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]    
Bank certificates of deposit $ 450,000 $ 450,000
Long-term variable rate credit facilities 86,115,000 72,414,000
Long-term credit facilities, current maturities 2,993,000 2,143,000
Level 2 [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Bank certificates of deposit 450,000 450,000
Long-term variable rate credit facilities 86,115,000 72,414,000
Level 3 [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Level 3 investments $ 0 $ 0