Quarterly report pursuant to Section 13 or 15(d)

Investments (Details)

v2.4.0.8
Investments (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 28, 2014
Dec. 28, 2013
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 3,374 $ 8,642
Estimated Fair Value 3,374 8,642
Certificates of Deposit [Member]
   
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 3,374 8,642
Estimated Fair Value $ 3,374 $ 8,642