Divestitures - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
	Mar. 30, 2013	Mar. 29, 2013 DeltaNu	Mar. 29, 2013 DeltaNu Maximum	Mar. 29, 2013 DeltaNu Minimum
Divestitures [Line Items]
Maximum consideration receivable from assets sold			$ 1,500,000
Proceeds from sale of assets	500,000	500,000
Percentage of Earn-out receivable		5.00%
Earn-out period		5 years
Annual minimum earn-out payment receivable				100,000
Maximum earn-out payments during payment period		$ 1,000,000