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Fair Value Measurements (Details) - USD ($)
Oct. 28, 2017
Jan. 28, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]    
Bank certificates of deposit $ 450,000 $ 450,000
Long-term variable rate Credit Facilities 78,070,000 85,388,000
Long-term credit facilities, current maturities 3,440,000 3,242,000
Level 2 [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Bank certificates of deposit 450,000 450,000
Long-term variable rate Credit Facilities 78,070,000 85,388,000
Level 3 [Member]    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Level 3 investments $ 0 $ 0