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INCOME TAXES (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jul. 01, 2017
Jun. 25, 2016
Jul. 01, 2017
Jun. 25, 2016
Income Taxes [Line Items]        
State income and foreign tax expenses $ 0 $ 1,963,000 $ (1,146,000) $ 2,104,000
Foreign Earnings Repatriated   1,300,000   1,400,000
Current Foreign Tax Expense (Benefit) 62,000      
Deferred Tax Liabilities, Net 1,000,000   1,000,000  
Valuation Allowances and Reserves, Additions for Adjustments 1,000,000      
Net operating loss carryforwards available for tax purposes 141,000,000   $ 141,000,000  
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Amount $ 600,000      
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent     16.50%  
Kowon [Member]        
Income Taxes [Line Items]        
Gain (Loss) on Sale of Properties, Applicable Income Taxes   $ 700,000   $ 700,000