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Property, Plant and Equipment (Details) (USD $)
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment $ 29,282,329 $ 40,160,000  
Accumulated depreciation and amortization (23,247,366) (31,673,594)  
Net property, plant and equipment 6,034,963 8,486,406  
Depreciation expense 2,400,000 3,500,000 3,800,000
Minimum
     
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Maximum
     
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Land
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment 915,595 901,934  
Buildings
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment 2,398,188 2,424,152  
Buildings | Maximum
     
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Equipment
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment 20,993,220 23,219,534  
Equipment | Minimum
     
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Equipment | Maximum
     
Property, Plant and Equipment [Line Items]      
Useful Life 5 years    
Leasehold improvements
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment 3,441,553 11,157,960  
Furniture and fixtures
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment 910,270 783,030  
Furniture and fixtures | Maximum
     
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Equipment under construction
     
Property, Plant and Equipment [Line Items]      
Gross property, plant and equipment $ 623,503 $ 1,673,390