Acquisitions and Intangible Assets (Details 2) (USD $) In Thousands, unless otherwise specified	Jul. 28, 2012		Jan. 28, 2012		Jul. 30, 2011	Apr. 30, 2011
Other intangibles by major classes
Gross other intangibles	$ 28,583		$ 28,453
Accumulated amortization	(15,406)		(13,645)			(11,857)
Net Other Intangibles	13,177		14,808		16,342
Leases [Member]
Other intangibles by major classes
Gross other intangibles	12,366		12,390
Accumulated amortization	(10,131)		(9,477)
Net Other Intangibles	2,235		2,913
Customer Lists [Member]
Other intangibles by major classes
Gross other intangibles	14,105		14,062
Accumulated amortization	(4,285)		(3,292)
Net Other Intangibles	9,820		10,770
Other Intangible Assets [Member]
Other intangibles by major classes
Gross other intangibles	2,112	[1]	2,001	[1]
Accumulated amortization	(990)	[1]	(876)	[1]
Net Other Intangibles	$ 1,122	[1]	$ 1,125	[1]

[1] Includes non-compete agreements, vendor contract and backlog.