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COMPENSATION PLANS (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 02, 2016
Jun. 27, 2015
Jul. 02, 2016
Jun. 27, 2015
Apr. 30, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation $ 700 $ 1,100 $ 1,373 $ 2,298  
Stock Incentive Plan 2007 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares reserved for future issuance         2,550,000
Shares available for future grants 471,600   471,600    
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     3 years    
Restricted stock units issued 69,739   69,739    
Total compensation costs $ 4,600   $ 4,600    
Compensation expense recognized $ 700 $ 1,100 $ 1,400 $ 2,300  
Restricted Stock Units (RSUs) [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     3 years    
Restricted Stock Units (RSUs) [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period     5 years