Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jan. 02, 2015	Jan. 03, 2014	Dec. 28, 2012
Income Tax Disclosure [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Foreign	$ 4,157,000	$ 6,007,000	$ 3,423,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	5,100,000	4,267,000	3,948,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	3,920,000
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	$ 313,000