Fair Values of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jul. 12, 2014	Dec. 28, 2013	Jul. 13, 2013	Dec. 29, 2012
Financial assets, Carrying Amount
Cash and cash equivalents, Carrying Amount	$ 1,145	$ 1,091	$ 810	$ 2,544
Time deposits, Carrying Amount	1,700	1,700	1,950
Financial liabilities, Carrying Amount
Notes payable, Carrying Amount	8,520	21,700	16,930
Current portion of Long-term debt, Carrying Amount	1,580	1,563	2,557
Long-term debt, Carrying Amount	3,758	4,946	3,338
Fair Value, Inputs, Level 1 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	2,478	2,346	1,896
Time deposits, Fair Value	1,700	1,700	1,950
Financial liabilities, Fair Value
Notes payable, Fair Value	0	0	0
Current portion of Long-term debt, Fair Value	0	0	0
Long-term debt, Fair Value	0	0	0
Fair Value, Inputs, Level 2 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	0	0	0
Time deposits, Fair Value	0	0	0
Financial liabilities, Fair Value
Notes payable, Fair Value	8,520	21,700	16,930
Current portion of Long-term debt, Fair Value	1,580	1,563	2,557
Long-term debt, Fair Value	3,758	4,946	3,338
Fair Value, Inputs, Level 3 [Member]
Financial assets, Fair Value
Cash and cash equivalents, Fair Value	0	0	0
Time deposits, Fair Value	0	0	0
Financial liabilities, Fair Value
Notes payable, Fair Value	0	0	0
Current portion of Long-term debt, Fair Value	0	0	0
Long-term debt, Fair Value	$ 0	$ 0	$ 0