Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 28, 2013	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2004
Income Taxes [Line Items]
Effective tax rates		(14.40%)	1.20%	12.10%
Income tax expense benefit		$ (3,374,000)	$ 110,000	$ (2,324,000)
Reversal portion of deferred tax assets valuation allowance		3,900,000
Tax expense in excess of release of net operating loss valuation allowance	500,000
Effective tax rates		40.70%	40.30%	38.80%
Goodwill deductible for tax purpose					63,800,000
Unamortized goodwill	10,700,000	10,700,000	16,100,000
Operating loss carryforwards expiring date		2031
Federal and State [Member]
Income Taxes [Line Items]
Effective tax rates		(14.40%)	1.20%	12.10%
Minimum Alternative Tax [Member]
Income Taxes [Line Items]
Income tax expense benefit		100,000
Domestic Country [Member]
Income Taxes [Line Items]
Operating loss carryforwards	4,400,000	4,400,000
State [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 1,500,000	$ 1,500,000