Restructuring and Related Charges (Details) - Restructuring accrual activity (USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period	$ 657,000	$ 732,000
Charges to expense		260,000
Cash payments	(165,000)	(115,000)
Accrual, End of the Period	492,000	877,000
Lease Obligations [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period	488,000	732,000
Charges to expense
Cash payments	(61,000)	(61,000)
Accrual, End of the Period	427,000	671,000
Severance and Other Termination Costs [Member]
Restructuring and Related Charges (Details) - Restructuring accrual activity [Line Items]
Accrual, Begining of the Period	169,000
Charges to expense		260,000
Cash payments	(104,000)	(54,000)
Accrual, End of the Period	$ 65,000	$ 206,000