Long-term Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014 Minimum	Jan. 31, 2014 Minimum LIBOR Rate Loans Ranging	Jan. 31, 2014 Minimum Base Rate Loans Ranging	Jan. 31, 2014 Maximum	Jan. 31, 2014 Maximum LIBOR Rate Loans Ranging	Jan. 31, 2014 Maximum Base Rate Loans Ranging	Jan. 31, 2014 Credit Card Receivables Plus	Jan. 31, 2014 Inventory	Dec. 27, 2012 Inventory
Line Of Credit Facility [Line Items]
Revolving credit facility outstanding borrowings	$ 51.7	$ 41.8
Revolving credit facility	115
Maturity date	Jan. 04, 2017
Repurchase of common stock	10.0
Absolute minimum available reserve	10.0
The amount outstanding under the Amended Credit Agreement is limited by a borrowing base									85.00%	90.00%	92.50%
Maximum limit to the line of credit facility	115
Minimum available reserve percentage	10.00%
Applicable Margin for loans ranging rate				2.00%	1.00%		2.50%	1.50%
Unused line fees ranging			0.30%			0.375%
Aggregate amount of the letters of credit	0.8
Excess availability of line of credit	$ 49.7
Average rate of interest	2.50%	2.50%