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Stockholders' Equity (Details Textual) (USD $)
 1 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Aug. 31, 2007
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Dec. 29, 2012
1998 Stock Plan [Member]
Dec. 29, 2012
2008 Equity Incentive Plan [Member]
Aug. 31, 2009
Exchange Program [Member]
Employee
Dec. 29, 2012
Exchange Program [Member]
Dec. 31, 2011
Exchange Program [Member]
Jan. 01, 2011
Exchange Program [Member]
Dec. 29, 2012
Restricted stock units [Member]
Dec. 31, 2011
Restricted stock units [Member]
Jan. 01, 2011
Restricted stock units [Member]
Aug. 31, 2007
Stand Alone Options [Member]
Employee
Feb. 28, 2007
Stand Alone Options [Member]
Dec. 29, 2012
Stand Alone Options [Member]
Dec. 29, 2012
Restricted stock awards [Member]
Dec. 31, 2011
Restricted stock awards [Member]
Dec. 29, 2012
Minimum [Member]
Exchange Program [Member]
Dec. 29, 2012
Maximum [Member]
Dec. 29, 2012
Maximum [Member]
Exchange Program [Member]
Aug. 31, 2007
Common Stock [Member]
Aug. 31, 2007
Series A Preferred Stock [Member]
Dec. 29, 2012
Board of Directors [Member]
Restricted stock units [Member]
Dec. 29, 2012
Board of Directors [Member]
Restricted stock awards [Member]
Stockholders Equity (Textual) [Abstract]                                                    
Convertible stock issued                                             1,000,000      
Liquidation preference to holders   $ 5,000,000 $ 5,000,000                                   $ 600,000          
Voting Rights on outstanding capital stock           10.00%                                        
Exercise price of option           110.00%                                        
Term of incentive stock option           7 years                                        
Term of incentive stock options for major stock holders           5 years                                        
Exercisable Period           4 years                                        
Maximum term of incentive stock options granted           10 years                                        
Repurchase of shares           0                                        
Expiration date of option Plan           2008-02                                        
Grant of non-qualified stock option             300,000           20,000   235,000                      
Number of new employees to whom stock options granted                             54                      
Exercise price of option                               $ 10.06                    
Shares outstanding and exercisable                                 4,000                  
Number of options held by eligible employees   741,978 505,221 760,137 862,157     663,018                                    
Number of employees surrendered stock options               72                                    
Number of surrendered options by eligible employees               364,162                                    
Number of Shares, Options granted               197,116                                    
Weighted Average Exercise Price, Options granted   $ 3.92 $ 3.59 $ 3.98       $ 2.35                                    
Incremental expense                 38,000                                  
Vesting periods of the new options                                       P6M   P3Y        
Shares reserved                 2,312,521                                  
Weighted-average grant date fair value of the options granted   $ 2.60 $ 2.47 $ 2.70                                            
Dividend yield   0.00% 0.00% 0.00%         0.00%                                  
Total intrinsic value of options exercised   (445,000) (321,000) (88,000)         261,000 84,000 46,000                              
Total unrecognized compensation cost related to non-vested share-based compensation arrangements   1,400,000                                                
Cost is expected to be recognized over a weighted average period   3 years 3 months 11 days                                                
The intrinsic value of the restricted stock units                       $ 3.76                            
Weighted average grant date fair value                       $ 3.85 $ 3.49         $ 3.75 $ 3.95           $ 3.85 $ 3.75
Weighted average shares                         315,000           40,000           216,000 40,000
Number of Shares, Restricted stock awards granted                       55,999 90,189 0       10,666 10,126           55,999 10,666
Common stock issued   8,452,971 8,917,824                                              
Number of shares, Options exercised   174,631 99,291 34,558                                            
The intrinsic value of the restricted stock units   980,000                                                
Incremental expense   388,000 478,000 488,000                                            
Shares reserved   1,570,543 1,766,401 1,618,066 1,583,508                                          
Proceeds from common stock                                               4,900,000    
Restricted stock awards granted, Number of Shares               197,116                                    
Stockholders Equity (Additional Textual) [Abstract]                                                    
Undesignated Preferred stock authorized   2,000,000 2,000,000                                              
Preferred stock issued   500,000 500,000                                              
Preferred stock Par value $ 0.01 $ 0.01 $ 0.01                                              
Warrants to purchase common stock 600,000                                                  
Exercise price of warrants 0.01                                                  
Warrants expiration date Dec. 31, 2007                                                  
Unit preferred stock 1                                                  
Per unit common stock stock 1.2                                                  
Purchase price of preferred stock and warrants $ 10.00                                                  
Proceeds allocated to common stock warrants $ 2,300,000                                                  
Closing Trading price of common stock   $ 5.00                                                
Number of trading days   30 days                                                
Liquidation damages paid by company   $ 0.01                                                
Maximum damages paid to holders   12.00%                                                
Maximum liquidated damages paid on specified period   7 days                                                
Interest payment on liquidation payment failure   18.00%