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(8) Investments Sales of Available-for-sale Securities (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 02, 2011 | Jan. 03, 2010
Schedule of Available-for-sale Securities [Line Items] |  |
Proceeds from sales | $ 288 | $ 32,243
Gross realized gains | 125 | 3,035
Gross realized losses | 0 | (618)
Gross realized gain (loss) | 125 | 2,417
Unrealized holding gains arising during the year | 0 | 101
Reclassification of prior year unrealized holding gains into net income or loss | (101) | (168)
Change in unrealized gains and losses on available-for-sale securities, gross | (101) | (67)
Income tax benefit | 42 | 18
Change in unrealized gain on available-for-sale securities | $ (59) | $ (49)

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- Definition The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 21 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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