|
Shareholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
9 Months Ended | 6 Months Ended | 9 Months Ended | 0 Months Ended | 9 Months Ended | 0 Months Ended | 9 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 28, 2013
|
Sep. 28, 2013
2011 Plan
|
Jun. 29, 2013
Stock options
|
Sep. 28, 2013
Stock options
|
Sep. 28, 2013
Stock options
2011 Plan
|
Jul. 22, 2013
Stock options
2011 Plan
Director
|
May 09, 2013
Stock options
2011 Plan
Director
|
Sep. 28, 2013
Stock options
2011 Plan
Director
|
May 09, 2013
Stock options
2011 Plan
Management
|
Jul. 22, 2013
Stock options
2011 Plan
Employees
|
May 09, 2013
Stock options
2011 Plan
Employees
|
Sep. 28, 2013
Stock options
2011 Plan
Employees
|
Sep. 28, 2013
Stock options
2006 Plan
|
Sep. 28, 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 | $ 2.65 | $ 1.89 | $ 1.89 | |||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 2.06 | $ 1.66 | $ 1.47 | |||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 0.00% | 0.00% | 0.00% | |||||||||||||
| Maximum number of shares of common stock which can be issued | 700,000 | |||||||||||||||
| Vesting period | 6 months | 3 years | 2 years | 2 years | ||||||||||||
| Document Period End Date | Sep. 28, 2013 | |||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 100,000 | 30,000 | 185,000 | 50,000 | 135,000 | |||||||||||
| Options outstanding (in shares) | 367,000 | 391,000 | 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% | 89.60% | ||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 1.28% | 1.88% | ||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 7 years 5 months 1 day | 7 years | ||||||||||||||