Basis of Financial Statement Presentation - Reconciliation of Cash and Restricted Cash Equivalents (Details) - USD ($) $ in Thousands	May 05, 2018	Feb. 03, 2018	Apr. 29, 2017	Jan. 28, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash	$ 30,077	$ 23,940	$ 25,938	$ 32,647
Restricted cash equivalents	450	450	450	450
Total cash and restricted cash equivalents	$ 30,527	$ 24,390	$ 26,388	$ 33,097