Derivative and Hedging Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2015	Dec. 30, 2014	Dec. 31, 2013
Interest Rate Swaps
Notional amount of hedge obligation	$ 25,000
Fixed interest rate of derivative (as a percent)	3.83%
Fair value of derivative instruments
Fair value of Derivative Liabilities, Interest rate swaps	$ 45	$ 1,375
Total Derivative Contracts	45	1,375
Interest rate cash flow hedges
Gain recognized in AOCI, net of tax (effective portion)	817	808	$ 809
Loss reclassified from AOCI to income (effective portion)	1,397	$ 1,480	$ 1,474
Interest rate swap, entered October 22, 2008
Interest Rate Swaps
Notional amount of interest rate swap	25,000
Notional amount of hedge obligation	$ 25,000
Fixed interest rate of derivative (as a percent)	3.83%
Interest rate swap, entered January 7, 2009
Interest Rate Swaps
Notional amount of interest rate swap	$ 25,000
Notional amount of hedge obligation	$ 25,000
Fixed interest rate of derivative (as a percent)	2.34%