DEBT AND LINES OF CREDIT (Details) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Debts and Lines of credit
Current portion of long-term debt	$ 1,068	$ 3,580
Total short-term borrowings	4,234	4,861
Revolving Credit Facility [Member]
Debts and Lines of credit
Total short-term borrowings	690	666
Japanese Receivables Financing Facilities [Member]
Debts and Lines of credit
Total short-term borrowings	$ 2,476	$ 615