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Short-Term Investment Reconciliation - (Tables)
12 Months Ended
Jan. 30, 2016
InvestmentsDebtAndEquitySecuritiesAbstract  
Schedule Of Available For Sale Securities Reconciliation to Fair Value
January 30, 2016January 31, 2015
Debt securitiesDebt securities
issued by various issued by various
states of the Unitedstates of the United
States and politicalCorporateStates and politicalCorporate
subdivisions of debtsubdivisions of debt
the statessecuritiesTotalthe statessecuritiesTotal
Cost basis192,56121,955214,516147,22713,996161,223
Unrealized gains9394097990656962
Unrealized (loss)------
Estimated fair value$193,500$21,995$215,495$148,133$14,052$162,185