Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity (Details)

v2.4.0.8
Shareholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended 6 Months Ended 0 Months Ended
Jun. 29, 2013
Jun. 29, 2013
2011 Plan
Jun. 29, 2013
Stock options
Jun. 29, 2013
Stock options
2011 Plan
May 09, 2013
Stock options
2011 Plan
Director
Aug. 10, 2012
Stock options
2011 Plan
Director
May 10, 2012
Stock options
2011 Plan
Director
May 09, 2013
Stock options
2011 Plan
Management
May 09, 2013
Stock options
2011 Plan
Employees
Aug. 10, 2012
Stock options
2011 Plan
Employees
Jun. 29, 2013
Stock options
2006 Plan
Jun. 29, 2013
Stock options
1997 Plan
Oct. 21, 2009
Warrant [Member]
Minimum [Member]
Oct. 21, 2009
Warrant [Member]
Maximum
Shareholders' Equity                            
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price         $ 1.89       $ 1.89          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value         $ 1.66       $ 1.47          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%   0.00%                      
Maximum number of shares of common stock which can be issued   700,000                        
Vesting period           6 months 6 months   2 years 2 years        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         30,000     185,000 0          
Options outstanding (in shares)       267,000             406,000 8,000    
Warrants outstanding $ 278                          
Exercise price of warrants                         0.73 3.55
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     90.93%                      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate     1.28%                      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term     7 years 5 months 1 day