CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 28, 2017	Jan. 30, 2016
Consolidated Statements of Comprehensive (Loss) Income
Net (loss) income	$ (2,183)	$ 6,164	$ (17,997)	$ 3,602
Other comprehensive income:
Unrealized (loss) gain on investments, net of deferred tax (benefit) expense of $(7) and $5 for the three months ended January 28, 2017 and January 30, 2016, respectively; and net of deferred tax expense of $6 and $23 for the nine months ended January 28, 2017 and January 30, 2016, respectively	(11)	7	32	34
Total comprehensive (loss) income	$ (2,194)	$ 6,171	$ (17,965)	$ 3,636