Organization and Basis of Presentation (Recent Accounting Pronouncements) (Details) - USD ($) $ in Thousands	Jul. 28, 2019	Jan. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 10,919
Total operating lease liabilities	$ 11,683
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 13,000
Total operating lease liabilities		$ 13,800