Debt - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended						12 Months Ended			12 Months Ended				1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	May 31, 2013	Jul. 31, 2013	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012	Mar. 30, 2012	Jan. 28, 2011	May 31, 2010	Jan. 31, 2014 January 28, 2011	Jan. 31, 2014 March Thirty Two Thousand Twelve [Member]	Jan. 28, 2011 Term Loans [Member] Maximum [Member]	Jan. 31, 2014 Related Party [Member]	Jan. 31, 2013 Related Party [Member]	Jan. 31, 2012 Related Party [Member]	Jan. 28, 2011 Related Party [Member]	May 31, 2010 Accounts Receivable Securitization Facility [Member]	Jan. 31, 2014 Accounts Receivable Securitization Facility [Member]	May 31, 2010 Renewed and Extended [Member]	Jan. 31, 2014 Renewed and Extended [Member]
Debt Disclosure [Line Items]
Term loans												$ 8,500				$ 1,000
Borrowing							3,500	5,000
Loan and security agreement maturity period				54 months
Interest rate								10.50%
Maturity date of agreement										Aug. 01, 2015	Oct. 01, 2016
Additional interest rate								2.50%
Additional interest value							87	125
Interest payments term				Interest only payments were payable during the first twelve months with principal and interest payments required for forty-two months thereafter.
Interest expense													26	97	138
Remaining outstanding principal	6,852
Accrued interest	60
Deferred origination fees	213
Prepayment interest penalty	290
Additional interest penalties after second anniversary	3.00%
Additional interest penalties prior second year	4.00%
Loss from the extinguishment of debt		755		(755)
Expected savings of cash interest				429
Expected savings of cash interest, year one				428
Expected savings of cash interest, year two				170
Expected savings of cash interest, year three				31
Non-cash interest expense				131	478	295
Credit agreement amount									10,000
Interest rate																	1.50%		2.50%
Line of credit, expiration date																				May 23, 2013
Cash Collateral fee																		0.25%		0.375%
Borrowings			0		0
Repayments			$ 0