Accounts Receivable (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 29, 2012
Accounts Receivable (Additional Textual) [Abstract]
Sold receivables amount	$ 600,000	$ 1,200,000	$ 5,200,000	$ 4,800,000
Due from unrelated third parties	$ 0		$ 0		$ 0
Minimum [Member]
Accounts Receivable (Textual) [Abstract]
Administrative fees as well as interest percent			1.21%
Maximum [Member]
Accounts Receivable (Textual) [Abstract]
Administrative fees as well as interest percent			1.475%