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Note 20. Financial Instruments and Fair Value Measurements (Details) - Table of Estimated Fair Value of Financial Instruments, Current Year (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 29, 2013
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 31, 2013
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Dec. 29, 2013
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 31, 2013
Corporate Debt Securities [Member]
Note 20. Financial Instruments and Fair Value Measurements (Details) - Table of Estimated Fair Value of Financial Instruments, Current Year [Line Items]          
Available for Sale Securities $ 49,099 $ 21,993 $ 21,993 $ 27,106 $ 27,106