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FACILITY CLOSURE (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Sep. 29, 2012
Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]          
Number of employees affected by closure       210  
Restructuring and related costs, costs recorded $ 402,000 $ 372,000 $ 1,052,000 $ 100,000  
Restructuring Reserve, Settled with Cash (70,000) 0 0    
Salvage value of facility 2,000,000     2,000,000  
Facility Closing [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring costs, accelerated depreciation 400,000     800,000  
Restructuring Reserve 1,756,000 1,424,000 1,052,000 1,756,000 0
Employee Severance [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring costs, severance costs 347,000 302,000 1,052,000 1,700,000  
Restructuring Reserve 1,701,000 1,354,000 1,052,000 1,701,000 0
Restructuring Reserve, Settled with Cash 0 0 0    
One-time Termination Benefits [Member]
         
Restructuring Cost and Reserve [Line Items]          
Expected additional closure-related charges       900,000  
Expected additional closure-related charges, in 2012       300,000  
Expected additional closure-related charges, in 2013       600,000  
Accelerated Depreciation [Member]
         
Restructuring Cost and Reserve [Line Items]          
Expected additional closure-related charges       900,000  
Expected additional closure-related charges, in 2012       400,000  
Expected additional closure-related charges, in 2013       500,000  
Other Closure Costs [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring and related costs, costs recorded 55,000 70,000 0    
Restructuring Reserve 55,000 70,000 0 55,000 0
Restructuring Reserve, Settled with Cash (70,000) 0 0    
Expected additional closure-related charges       $ 1,000,000