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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]
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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

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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