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%