Fair Value Measurements (Tables)

12 Months Ended

Jan. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of available for sale securities measured on a recurring basis (in thousands)

			Fair Value Measurements
As of January 30, 2016:			Using Inputs Considered as
	Fair Value		Level 1		Level 2		Level 3
Short-term investments:
Corporate bonds		2,810		—		2,810		—
Municipal bonds		205		—		205		—
Total assets	$	3,015	$	—	$	3,015	$	—

			Fair Value Measurements
As of January 31, 2015:			Using Inputs Considered as
	Fair Value		Level 1		Level 2		Level 3
Short-term investments:
Certificates of deposit	$	4,078	$	—	$	4,078	$	—
Commercial paper		7,384		—		7,384		—
Corporate bonds		1,616		—		1,616		—
Municipal bonds		215		—		215		—
Total current assets		13,293		—		13,293		—
Long-term investments:
Corporate bonds		2,853		—		2,853		—
U.S. Agency securities		1,899		—		1,899		—
Total non-current assets		4,752		—		4,752		—
Total assets	$	18,045	$	—	$	18,045	$	—

Schedule of assets measured at fair value on a non-recurring basis (in thousands)

	Fiscal Year Ended		Fiscal Year Ended
Long-Lived Assets Held and Used (in thousands):	January 30, 2016		January 31, 2015
Carrying value	$	356	$	270
Fair value measured using Level 3 inputs	$	75	$	54
Impairment charge	$	281	$	216

Schedule of unobservable inputs

	Range
Unobservable Inputs	Fiscal 2015	Fiscal 2014
Weighted Average Cost of Capital (WACC)	15%	15%
Annual sales growth	0% to 8%	(3%) to 3.5%