Quarterly report pursuant to Section 13 or 15(d)

Line of Credit (Details)

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Line of Credit (Details)
1 Months Ended 9 Months Ended
Oct. 03, 2015
USD ($)
Oct. 03, 2015
USD ($)
Sep. 27, 2014
Jan. 03, 2015
USD ($)
Line of Credit        
Interest rate on the revolving line of credit   one-month LIBOR rate    
Document Period End Date   Oct. 03, 2015 Oct. 03, 2015  
Outstanding balance under the Revolving Credit Agreement $ 12,407,000 $ 12,407,000   $ 9,237,000
Revolving line of credit | PNC        
Line of Credit        
Amount of revolving line of credit $ 15,000,000 $ 15,000,000    
Minimum fixed charge coverage ratio   1.10    
Trailing period for measurement of fixed charge coverage ratio (in months)   12 months    
Interest rate margin (as a percent) 3.75% 1.75%    
Outstanding balance under the Revolving Credit Agreement $ 12,407,000 $ 12,407,000   $ 9,237,000
Weighted average interest rate (as a percent) 7.00% 7.00%   3.30%
Available borrowing capacity under the Revolving Credit Agreement $ 1,853,000 $ 1,853,000   $ 4,882,000
Revolving line of credit | PNC | Base Rate        
Line of Credit        
Interest rate on the revolving line of credit   PNC Base Rate    
Revolving line of credit | PNC | LIBOR Rate        
Line of Credit        
Interest rate on the revolving line of credit   1-, 2- or 3-month PNC LIBOR Rate    
Interest rate margin (as a percent)   2.75%    
Revolving line of credit | PNC | Federal Funds Open Rate        
Line of Credit        
Interest rate on the revolving line of credit   Federal Funds Open Rate    
Interest rate margin (as a percent)   0.50%    
Revolving line of credit | PNC | One month LIBOR rate        
Line of Credit        
Interest rate margin (as a percent)   1.00%    
Letter of credit | PNC        
Line of Credit        
Letter of credit issued in favor of Whirlpool Corporation $ 750,000 $ 750,000