INTEREST AND OTHER EXPENSE, NET (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
INTEREST AND OTHER EXPENSE, NET
Interest expense	$ (1,087)	$ (1,948)	$ (4,670)	$ (6,191)
Interest and dividend income	46	55	151	158
Derivative gain (loss)	167	(633)	541	(450)
Bank and portfolio asset management fees	(245)	(212)	(631)	(540)
Other income (expense), net	(174)	656	(863)	(74)
Total	$ (1,293)	$ (2,082)	$ (5,472)	$ (7,097)