Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Income Taxes [Line Items]
Income tax provision percentage	35.00%
Gross amount of unrecognized tax benefits	$ 727	$ 2,107	$ 4,809	$ 7,304
Unrecognized tax benefits that would impact effective tax rate	700
Unrecognized tax benefit, accrued interest	100	$ 300
Domestic Tax Authority
Income Taxes [Line Items]
Federal net operating loss carryforwards	12,100
State and Local Jurisdiction
Income Taxes [Line Items]
State net operating loss carryforwards	6,700
Credit carryforwards	$ 3,000
Operating loss carryforwards expiration year	Through fiscal 2035
Unrecognized tax benefits that would impact effective tax rate	$ 200
Bargain gain
Income Taxes [Line Items]
Income tax provision percentage	5.20%