Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013
Income Tax Disclosure [Abstract]
Tax provision from income taxes	$ 20	$ 57
Unrecognized tax benefits	78		79
Penalties and interest expense	2
Accrued interest and penalties related to uncertain tax positions	41
Unrecognized tax benefits expiring from lapse of applicable statute of limitation in next twelve months	36
Accrued interest and penalties related to uncertain tax positions	$ 120