Restructuring and Other Charges (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Dec. 31, 2012
Restructuring and Other Charges Reserve [Roll Forward]
Accrued Restructuring and Other Charges	$ 277,000		$ 999,000
Additions	24,000	0
Cash Payments	(692,000)
Adjustments	(54,000)
Consolidation of Product Groups [Member]
Restructuring and Other Charges Reserve [Roll Forward]
Accrued Restructuring and Other Charges	253,000		999,000
Additions	0
Cash Payments	(692,000)
Adjustments	(54,000)
Acquisition-related Costs [Member]
Restructuring and Other Charges Reserve [Roll Forward]
Accrued Restructuring and Other Charges	24,000		0
Additions	24,000
Cash Payments	0
Adjustments	$ 0