Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2013

Accounts Receivable [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(Dollars in thousands)
	March 31, 2013			December 30, 2012
Trade receivables	$	108,474		$	91,747
Other receivables	6,264			7,293
	114,738			99,040
Allowance for doubtful accounts	(920		)	(573		)
Accounts receivable, net	$	113,818		$	98,467