Restructuring and Related Charges (Details) - Restructuring accrual activity (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Dec. 31, 2013
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period		$ 732	$ 657
Charges to expense	569	522
Cash payments	(268)	(357)
Accrual, End of the Period	958	897	657
Lease Obligations [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period		732	488
Charges to expense	354
Cash payments	(122)	(122)
Accrual, End of the Period	720	610	488
Severance and Other Termination Costs-Corporate Office [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period			169
Charges to expense	(39)
Cash payments	(116)
Accrual, End of the Period	14		169
Severance and Other Termination Costs – Robbinsville Closing [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period
Charges to expense	254
Cash payments	(30)
Accrual, End of the Period	224
Severance And Other Termination Costs [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period
Charges to expense		522
Cash payments		(235)
Accrual, End of the Period		$ 287