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Stockholders' Equity (Preferred And Common Stock Narrative) (Details) (USD $) | 3 Months Ended | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 29, 2012 | Mar. 31, 2012 | Dec. 29, 2012 | Mar. 30, 2013 | Dec. 29, 2012 Ascendiant Capital Markets LLC [Member] | Dec. 31, 2011 Ascendiant Capital Markets LLC [Member]
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, shares authorized |  |  |  | 10,000,000 |  |
Preferred stock, par value |  |  |  | $ 0.001 |  |
Preferred stock, shares outstanding | 0 |  | 0 | 0 |  |
Shares reserved for issuance, value |  |  |  | $ 10,000,000 |  |
Proceeds from public offering, net | 1,300,000 | 3,573,000 |  |  | 3,900,000 | 1,900,000
Shares issued during the period | 1,685,394 |  |  |  | 1,312,669 | 697,470
Class of Warrant or Right, Outstanding | 2,275,282 |  | 2,275,282 |  |  |
Warrants as a percentage of stock issued |  |  | 135.00% |  |  |
Period after which warrants are exercisable |  |  | 181 days |  |  |
Exercise price of Warrants | 0.89 |  | 0.89 |  |  |
Stock Issued During Period, Value, New Issues | $ 1,500,000 |  |  |  |  |

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