Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Dec. 25, 2009
Accounting Policies [Abstract]
Number of business segments	3
Number of weeks in previous fiscal year (in weeks)		53
Number of weeks in normal fiscal year (in weeks)	52
Cash and cash equivalents [Abstract]
Original maturity of investments considered cash and cash equivalent items, maximum (in months)	3
Inventory [Abstract]
Inventory provisions	$ 3,700,000	$ 6,100,000
Goodwill and other intangibles [Abstract]
Carrying amount of goodwill	0	0
Other finite-lived intangible assets useful life, minimum (in years)	3
Other finite-lived intangible assets useful life, maximum (in years)	7
Goodwill and identifiable intangible asset impairment		29,700,000	71,000,000
Indefinite-lived tradename impairment	300,000	300,000
Revenue recognition [Abstract]
Product return period (in months)	3
Accounts receivable allowances	600,000	900,000
Share-based compensation [Abstract]
Option expiration period (in years)	Seven years
Annual vesting percentage (in hundredths)	25.00%
Financial instruments and derivative financial instruments [Abstract]
Outstanding borrowings under the revolving credit facility	43,950,000	32,150,000
Estimated fair value of our convertible senior notes	$ 45,871,000	$ 33,164,000
Buildings and improvements [Member]
Property, plant and equipment [Abstract]
Assets estimated useful life, minimum (in years)	5
Assets estimated useful life, maximum (in years)	30
Machinery and equipment [Member]
Property, plant and equipment [Abstract]
Assets estimated useful life, minimum (in years)	2
Assets estimated useful life, maximum (in years)	10
Restricted Stock [Member]
Share-based compensation [Abstract]
Vesting period (in years)	Three years
Stock Options [Member]
Share-based compensation [Abstract]
Vesting period (in years)	Four years