Long-Term Debt and Credit Arrangements (Equipment Notes Payable) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014 M	Dec. 28, 2013
Debt Instrument [Line Items]
Escrow Deposit	$ 574	$ 1,401
Note Payable - 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.42%
Term of Note Payable	36
Debt Instrument, Periodic Payment	16
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Apr. 01, 2016
Note Payable - 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.00%
Term of Note Payable	60
Debt Instrument, Periodic Payment	38
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Aug. 01, 2016
Note Payable - 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.94%
Term of Note Payable	75
Debt Instrument, Periodic Payment	41
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Feb. 01, 2019
Note Payable - 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.00%
Term of Note Payable	84
Debt Instrument, Periodic Payment	18
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jun. 14, 2020
Note Payable - 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.84%
Term of Note Payable	60
Debt Instrument, Periodic Payment	3
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jul. 01, 2018
Note Payable - 6 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.86%
Term of Note Payable	60
Debt Instrument, Periodic Payment	49
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 01, 2018
Note Payable - 7 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.65%
Term of Note Payable	84
Debt Instrument, Periodic Payment	8
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Dec. 24, 2021
Note Payable -8 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.50%
Term of Note Payable	36
Debt Instrument, Periodic Payment	49
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Maturity Date	Aug. 17, 2016
Note Payable - 9 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.37%
Term of Note Payable	60
Debt Instrument, Periodic Payment	53
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Sep. 26, 2019
Note Payable-10 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.76%
Term of Note Payable	84
Debt Instrument, Periodic Payment	1
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 07, 2021
Note Payabe-11 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.54%
Term of Note Payable	84
Debt Instrument, Periodic Payment	4
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 23, 2021
Note Payable-12 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.74%
Term of Note Payable	60
Debt Instrument, Periodic Payment	28
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 23, 2019
Note Payable-13 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.66%
Term of Note Payable	84
Debt Instrument, Periodic Payment	9
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 23, 2021
Note Payable-14 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.60%
Term of Note Payable	84
Debt Instrument, Periodic Payment	$ 17
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 16, 2021