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Shareholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | 12 Months Ended | 0 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 28, 2013
|
Dec. 29, 2012
|
Dec. 28, 2013
Common Stock [Member]
|
Dec. 29, 2012
Common Stock [Member]
|
Dec. 28, 2013
2011 Plan
|
Dec. 28, 2013
Stock options
|
Dec. 29, 2012
Stock options
|
Jan. 01, 2011
Stock options
|
Dec. 28, 2013
Stock options
Common Stock [Member]
|
Dec. 29, 2012
Stock options
Common Stock [Member]
|
Dec. 28, 2013
Stock options
2011 Plan
|
May 09, 2013
Stock options
2011 Plan
Employees
|
Jul. 22, 2013
Stock options
2011 Plan
Management [Member]
|
May 09, 2013
Stock options
2011 Plan
Non-employee directors
|
Aug. 02, 2012
Stock options
2011 Plan
Non-employee directors
|
May 10, 2012
Stock options
2011 Plan
Non-employee directors
|
Dec. 28, 2013
Stock options
2006 Plan
|
Dec. 28, 2013
Stock options
1997 Plan
|
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| Shareholders' Equity | ||||||||||||||||||
| Document Fiscal Year Focus | 2013 | |||||||||||||||||
| Issuance of Common Stock (in Shares) | 15,000 | 29,000 | ||||||||||||||||
| Issuance of Common Stock | $ 36 | $ 86 | $ 36 | $ 86 | ||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 164 | $ 7 | $ 71 | |||||||||||||||
| Maximum number of shares of common stock which can be issued | 700,000 | |||||||||||||||||
| Vesting period | 2 years | 3 years | 6 months | 6 months | 6 months | |||||||||||||
| Options Outstanding | 766,000 | 533,000 | 588,000 | 367,000 | 391,000 | 8,000 | ||||||||||||
| Granted (in shares) | 315,000 | 38,000 | 185,000 | 100,000 | 30,000 | 8,000 | 30,000 | |||||||||||
| Granted, exercise price | $ 2.13 | $ 4.04 | $ 1.89 | $ 2.65 | $ 1.89 | $ 4.01 | $ 4.05 | |||||||||||
| Weighted average grant date fair value (in dollars per share) | $ 1.68 | $ 3.56 | $ 1.47 | $ 2.06 | $ 1.66 | $ 3.52 | $ 3.57 | |||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Options that Will Vest Equally | 135,000 | 50,000 | ||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Options that Will Vest Based on Achievements of Performance | 50,000 | 50,000 | ||||||||||||||||
| Assumptions used to estimate the fair value of stock options granted | ||||||||||||||||||
| Expected dividend yield (as a percent) | 0.00% | 0.00% | 0.00% | |||||||||||||||
| Expected stock price volatility (as a percent) | 90.50% | 95.46% | ||||||||||||||||
| Risk-free interest rate (as a percent) | 1.47% | 1.80% | ||||||||||||||||
| Expected life of options (in years) | 7 years 3 months 15 days | 10 years | ||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | ||||||||||||||||||
| Options Outstanding Balance | 533,000 | 588,000 | 367,000 | 391,000 | 8,000 | |||||||||||||
| Granted (in shares) | 315,000 | 38,000 | 185,000 | 100,000 | 30,000 | 8,000 | 30,000 | |||||||||||
| Exercised | (15,000) | (29,000) | ||||||||||||||||
| Cancelled/expired | (67,000) | (59,000) | ||||||||||||||||
| Forfeiture | (5,000) | |||||||||||||||||
| Options Outstanding Balance | 766,000 | 533,000 | 588,000 | 367,000 | 391,000 | 8,000 | ||||||||||||
| Weighted average exercise Price, balance | $ 3.88 | $ 3.99 | ||||||||||||||||
| Granted, exercise price | $ 2.13 | $ 4.04 | $ 1.89 | $ 2.65 | $ 1.89 | $ 4.01 | $ 4.05 | |||||||||||
| Exercisesd, exercise Price | $ 2.38 | $ 3.03 | ||||||||||||||||
| Expired, exercise price | $ 3.11 | $ 5.25 | ||||||||||||||||
| Forfeiture, exercise price | $ 4.25 | |||||||||||||||||
| Weighted Average Exercise Price, balance | $ 3.26 | $ 3.88 | $ 3.99 | |||||||||||||||