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GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)
 12 Months Ended
Dec. 27, 2013
Dec. 28, 2012
Dec. 30, 2011
Other intangible assets      
Gross Amount $ 1,232,000 $ 1,232,000  
Accumulated Amortization 1,232,000 1,220,000  
Amortization expense for acquired identifiable intangible assets 12,000 37,000 46,000
Estimated future amortization expense 0    
Backlog
      
Other intangible assets      
Gross Amount 920,000 920,000  
Accumulated Amortization 920,000 920,000  
Amortization Period 1 year    
Training materials/courses
      
Other intangible assets      
Gross Amount 282,000 282,000  
Accumulated Amortization 282,000 270,000  
Amortization Period 5 years    
Non-compete agreements
      
Other intangible assets      
Gross Amount 30,000 30,000  
Accumulated Amortization $ 30,000 $ 30,000  
Amortization Period 3 years