Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended		5 Months Ended	9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014 Subsidiary	Nov. 02, 2013	May 30, 2014 2005 Plan [Member]	Nov. 01, 2014 2005 Plan [Member]	Nov. 01, 2014 Employee Stock Purchase Plan [Member]	Nov. 01, 2014 Employee Stock Purchase Plan [Member]	Nov. 02, 2013 Employee Stock Purchase Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of subsidiaries			10
Pre-tax compensation cost for stock-based employee compensation	$ 200,000	$ 200,000	$ 600,000	$ 600,000
Additional shares available for issuance					1,500,000
Common stock authorized						3,500,000	600,000	600,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans							476,041
Common stock reserved for issuance						1,225,240
Total unrecognized compensation cost	1,398,000		1,398,000
Value of common stock purchase by employees								85.00%
Proceeds from the issuance of common stock under employee stock purchase plan			$ 55,000	$ 62,000				$ 100,000	$ 100,000