CONSOLIDATED BALANCE SHEETS (Parenthetical)
Dec. 29, 2013
Dec. 30, 2012
Class B [Member]
   
Equity:    
Common stock authorized (in shares) 120,000,000 120,000,000
Common stock issued (in shares) 6,134,093 6,905,955
Common stock outstanding (in shares) 6,134,093 6,905,955
Class A [Member]
   
Equity:    
Common stock authorized (in shares) 170,000,000 170,000,000
Common stock issued (in shares) 44,669,851 43,750,920
Common stock outstanding (in shares) 44,669,851 43,750,920