Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Current assets:
Allowance for Doubtful Accounts Receivable, Current	$ 418	$ 425
Shareholders’ equity:
Preferred Stock, Shares Authorized (in shares)	5,000	5,000
Preferred Stock, Shares Issued (in shares)	0	0
Preferred Stock, Shares Outstanding (in shares)	0	0
Common Stock, Par or Stated Value Per Share (in shares)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	142,500	142,500
Common Stock, Shares, Issued (in shares)	54,273	54,901
Common Stock, Shares, Outstanding (in shares)	54,273	54,901