Commitments and Contingencies - Additional Information (Detail)	1 Months Ended		9 Months Ended				9 Months Ended		3 Months Ended
	Sep. 03, 2013 USD ($)	Aug. 29, 2013 USD ($)	Sep. 28, 2013 USD ($)	Sep. 28, 2013 CNY	Aug. 05, 2011 JPY (¥)	May 27, 2011 JPY (¥)	Sep. 28, 2013 Damages from Product Defects USD ($)	Sep. 28, 2013 Damages from Product Defects CNY	Sep. 28, 2013 Minimum	Sep. 28, 2013 Maximum
Contingencies And Commitments [Line Items]
Warranty for products from date of sale									12 months	36 months
Damages complaint sought		$ 500,000	$ 800,000	4,796,531.81			$ 2,200,000	13,505,162.34
Assets to be maintained under Asset Preservation Order			2,500,000	15,000,000.00
Amount agreed to settle to Westley	3,950,000
Complaint against Furukawa					¥ 200,000,000	¥ 100,000,000