Risk Management and Derivatives (Schedule of Contract Notional Amount of All Purchase and Sale Contracts of a Foreign Currency) (Details) - Forward Contracts - USD ($) $ in Thousands	May 04, 2019	May 05, 2018	Feb. 03, 2018
Derivative [Line Items]
Derivative, Notional Amount	$ 29,067	$ 45,464	$ 33,929
Euro
Derivative [Line Items]
Derivative, Notional Amount	12,134	17,180	13,383
U.S. dollars (purchased by the Company's Canadian division with Canadian dollars) [Member]
Derivative [Line Items]
Derivative, Notional Amount	13,230	14,828	15,196
Chinese yuan
Derivative [Line Items]
Derivative, Notional Amount	2,858	12,520	4,507
New Taiwanese dollars
Derivative [Line Items]
Derivative, Notional Amount	469	514	461
Other currencies
Derivative [Line Items]
Derivative, Notional Amount	$ 376	$ 422	$ 382