Significant Accounting Policies (Details 4) (USD $)			6 Months Ended
	Jun. 29, 2014 item	Dec. 29, 2013	Jun. 29, 2014 Redeemable noncontrolling interests
Significant Accounting Policies
Number of joint ventures under which noncontrolling interest holders have the option to require the Company to purchase their interests	2
Net deferred tax liability	$ 5,300,000
Redeemable Noncontrolling Interests
Balance at the beginning of the period	8,433,000	7,024,000	7,024,000
Net income			1,370,000
Change in redemption value			39,000
Balance at the end of the period	$ 8,433,000	$ 7,024,000	$ 8,433,000