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Stockholders' Equity and Stock-Based Compensation Stockholders' Equity and Stock-Based Compensation (Nonemployee Director Restricted Stock and Restricted Stock Unit Awards) (Details) (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 07, 2014 | Jan. 02, 2016 | Jan. 03, 2015 | Dec. 28, 2013 | Mar. 09, 2006
Class of Stock [Line Items] |  |  |  |  |
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent |  | $ 500,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  | 136,177 | 29,603 | 0 |
Director Restricted Stock Plan [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Restricted Stock Subject To Restrictions Percent |  |  |  |  | 100.00%
Restricted Stock, Repurchase Price Per Share |  |  |  |  | $ 0.01
Share-based Compensation Arrangement by Share-based Payment Award, Stock Available for Grant Per Employee |  | $ 90,000 |  |  | $ 60,000
Shares granted |  | 46,910 | 25,678 | 21,780 |
Stock Awards [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares granted |  | 524,225 | 1,436,658 | 519,575 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |  | 714,626 | 861,772 | 527,725 |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common Stock Equivalent |  | 1 |  |  |
Vion Ingredients [Member] | Performance Shares [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares granted | 975,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 75.00% |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 118,750 | 252,087 |  |  |
Vion Ingredients [Member] | Fully Vested Performance Award [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 25.00% |  |  |  |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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