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Share-Based Compensation (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jul. 22, 2015
Jun. 16, 2015
Jun. 03, 2015
Apr. 08, 2013
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Jan. 02, 2016
Jun. 15, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Income tax benefits related to share-based compensation arrangements         $ 8,000 $ 5,000 $ 15,000 $ 20,000    
Share-based compensation             189,000 $ 446,000    
Share-based Compensation Arrangement by Share-based Payment Award, Description If the vesting percentage is less than 100% on the vesting date, that percentage of the non-vested stock that does not vest of the vesting date shall be forfeited.                  
Liability component         $ 2,190,000   $ 2,190,000   $ 2,251,000  
$4.00 market condition tranche [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Options vesting when price target is reached (shares)   75,000                
Share price target (in dollars per share)   $ 4.00     $ 4.00          
$5.00 market condition tranche [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Options vesting when price target is reached (shares)   75,000                
Share price target (in dollars per share)   $ 5.00     5.00          
$6.00 market condition tranche [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Options vesting when price target is reached (shares)   50,000                
Share price target (in dollars per share)   $ 6.00     $ 6.00          
Put Option [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Put option issued (shares)     112,692              
Put option, strike price (in dollars per share)     $ 4.50              
Number of put options exercised (shares)         19,000     90,036    
Put option share price (in dollars per share)         $ 4.50   $ 4.50      
Put option exercise amount         $ 85,000          
Liability component         0   $ 0   102,000  
Executive Officers and Employees [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Non-vested stock grants in period (shares)       800,000            
Two Employees [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Non-vested stock grants in period (shares) 58,940                  
Equity Incentive Plan [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Increase to shares available for issuance under the plan (shares)   500,000                
Cumulative number of shares of common stock available for issuance before amendment (shares)                   2,305,659
Cumulative number of shares of common stock available for issuance after amendment (shares)   2,805,659                
Service-Based Stock Option Awards [Member] | Equity Incentive Plan [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Share-based compensation         3,000 13,000 8,000 $ 38,000    
Unrecognized share-based compensation         $ 12,000   $ 12,000   $ 20,000  
Unrecognized share-based compensation, period for recognition         21 months          
Option grant in period (shares)             0 0    
Performance Based Non vested Share Awards [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Unrecognized share-based compensation, period for recognition         9 months          
Share-based compensation expense         $ 3,000 63,000 $ 53,000 $ 153,000    
Performance period for vesting of shares       4 years            
Cumulative Net Non-GAAP EBITDA goal       $ 14,000,000            
Weighted Average Grant Date Fair Value, Granted (in dollars per share)       $ 3.14            
Unrecognized compensation expense         $ 167,000   $ 167,000      
Performance Based Non vested Share Awards [Member] | Equity Incentive Plan [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Weighted Average Grant Date Fair Value, Granted (in dollars per share)         $ 3.14   $ 3.14   $ 3.15  
Market Condition Stock Option Awards [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Unrecognized share-based compensation         $ 26,000   $ 26,000      
Unrecognized share-based compensation, period for recognition             5 months      
Share-based compensation expense         $ 51,000 $ 22,000 $ 116,000 $ 22,000    
Market Condition Stock Option Awards [Member] | Equity Incentive Plan [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Option grant in period (shares)   200,000                
Option exercise price (in dollars per share)   $ 3.34