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(15) Stockholders' Equity (Tables) | 12 Months Ended
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Jan. 01, 2012
Debt and Equity [Abstract] |
Summary of Stockholders' Equity |
|  | Treasury Stock
|  | 2011 |  | 2010 |  | 2009
Number of shares at beginning of year |  | 52,050 |  |  | 17,492 |  |  | 1,220 |
Repurchase of common stock |  | 30,983 |  |  | 35,406 |  |  | 16,911 |
Common shares issued: |  |  |  |  |  |
Upon exercises of stock options, net |  | (1,461 | ) |  | (383 | ) |  | (524 | )
Upon grant of restricted stock and for directors fees |  | (1,163 | ) |  | (470 | ) |  | (52 | )
Other |  | 291 |  |  | 5 |  |  | (63 | )
Number of shares at end of year |  | 80,700 |  |  | 52,050 |  |  | 17,492 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 505 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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