Accounts Receivable (Details Textual) (USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Dec. 28, 2013
Accounts Receivable (Additional Textual) [Abstract]
Sold receivables amount	$ 600,000	$ 1,400,000
Gain (loss) on sales of accounts receivables	0	0
Amounts due from financial institutions	$ 0		$ 0
Minimum [Member]
Accounts Receivable (Textual) [Abstract]
Administrative fees as well as interest percent	1.23%
Maximum [Member]
Accounts Receivable (Textual) [Abstract]
Administrative fees as well as interest percent	1.68%