Summary of Significant Accounting Policies (Tables)

v2.4.0.6

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Jan. 28, 2012
Summary of significant accounting policies [Abstract]
Estimated useful lives or the expected lease term	Equipment and fixtures   3 to 10 years Leasehold improvements   10 years Electronic equipment and software   3 to 5 years