Note Receivable and Revolving Line of Credit Receivable - Additional Information (Detail)		12 Months Ended
	Jan. 30, 2012 USD ($)	Jan. 31, 2016 USD ($) Installment	Jan. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sale price	$ 1,000,000
Promissory note interest rate	3.75%
Interest commencement date		Jan. 30, 2013
Interest installments | Installment		16
Promissory note outstanding		$ 191,000
Revolving line of credit issued maximum		$ 600,000
Interest rate on outstanding credit balance		2.00%
Line of credit facility maturity date		Jan. 31, 2016
Extended revolving line of credit		$ 150,000	$ 173,000
Line of credit issued initial term		1 year
Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Promissory note interest rate		5.25%