Business Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Oct. 28, 2011
October 28, 2011 (As Initially Reported) [Member]
Assets acquired:
Accounts receivable	$ 3,801
Inventory	3,823
Property and equipment	4,965
Intangible assets	9,100
Goodwill	3,337
Other assets	200
Total assets acquired	25,226
Liabilities assumed:
Accounts payable and accrued liabilities	417
Total purchase price	24,809
Measurement Period Adjustments [Member]
Assets acquired:
Accounts receivable	(98)
Inventory	138
Property and equipment	0
Intangible assets	(100)
Goodwill	185
Other assets	(47)
Total assets acquired	78
Liabilities assumed:
Accounts payable and accrued liabilities	1
Total purchase price	77
As Adjusted [Member]
Assets acquired:
Accounts receivable	3,703
Inventory	3,961
Property and equipment	4,965
Intangible assets	9,000
Goodwill	3,522
Other assets	153
Total assets acquired	25,304
Liabilities assumed:
Accounts payable and accrued liabilities	418
Total purchase price	$ 24,886