Nature of Operations and Summary of Significant Accounting Policies (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Land	$ 3,176	$ 1,805
Buildings and leasehold improvements	18,905	17,719
Machinery and equipment	26,161	24,267
Total cost	48,242	43,791
Accumulated depreciation and amortization	(33,284)	(31,510)
Property, Plant and Equipment	$ 14,958	$ 12,281