Fair Value Measurements	3 Months Ended
Fair Value Measurements	May 05, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements GAAP utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to observable quoted prices (unadjusted) in active markets for identical assets and liabilities (Level 1 measurement), then priority to quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market (Level 2 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). As of May 5, 2018 and February 3, 2018 the Company had $450,000 in Level 2 investments in the form of bank certificates of deposit, which are included in restricted cash equivalents in the condensed consolidated balance sheets. The Company's investments in certificates of deposits were measured using inputs based upon quoted prices for similar instruments in active markets and, therefore, were classified as Level 2 investments. As of May 5, 2018 and February 3, 2018 the Company also had a long-term variable rate PNC Credit Facility, classified as Level 2, with carrying values of $70,530,000 and $73,899,000. As of May 5, 2018 and February 3, 2018, $2,326,000 was classified as current. The fair value of the variable rate PNC Credit Facility approximates and is based on its carrying value. The Company has no Level 3 investments that use significant unobservable inputs.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.