INCOME TAXES (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 26, 2015	Jun. 27, 2014	Dec. 31, 2014
INCOME TAXES [Abstract]
Deferred tax liabilities		$ 2,400
Release of valuation allowance	$ 80,000	$ 2,300	$ 79,000
Deferred tax assets, net of deferred tax liabilities	79,800		78,900
Net operating loss carry forwards	63,100		62,100
Liability for unrecognized tax benefits	100		100
Interest and penalties accrued	$ 25		$ 25