Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Assets:
Inventories	$ 6,779	$ 6,704
Accounts receivable	10,847	8,902
Accrued expenses	2,079	2,288
Other	1,764	1,801
Gross deferred tax assets	21,469	19,695
Liabilities:
Depreciation	3,367	2,129
Goodwill	9,231	9,149
Other	991	1,497
Gross deferred tax liabilities	13,589	12,775
Net deferred tax assets before valuation allowance	7,880	6,920
Valuation allowance		(1,424)
Net deferred tax assets	$ 7,880	$ 5,496