Derivatives and Hedging Activities - Summary of the Carrying Values of Derivative Instruments (Details) - USD ($) $ in Thousands		Apr. 30, 2017	Jan. 29, 2017
Derivatives, Fair Value [Line Items]
Fair Value - Assets		$ 501	$ 326
Fair Value - (Liabilities)		(36)	0
Derivative Net Carrying Value		465	326
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Net Carrying Value	[1]	465	326
Level 2 [Member] | Foreign Exchange Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Fair Value - Assets	[1],[2]	501	326
Level 2 [Member] | Foreign Exchange Contract [Member] | Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair Value - (Liabilities)	[1],[2]	$ (36)	$ 0

[1] Assets are included in "Other current assets" and liabilities are included in "Accrued liabilities" within the Balance Sheets.

[2] The fair values of the foreign exchange forward contracts are valued using Level 2 inputs. Please refer to Note 6.