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Common Stock (Details) (USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 10, 2012 | Feb. 22, 2012 | Aug. 30, 2011 | Jul. 06, 2010 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Share-Based Compensation |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  | $ 2,900,000 | $ 4,900,000 | $ 5,700,000
Non-employee compensation expense |  |  |  |  | 147,000 | 79,000 | 34,000
Employee tax withholdings paid on redemption of vested restricted shares |  |  |  |  | 730,000 | 1,360,000 | 1,146,000
Common Stock Repurchases and Retirements |  |  |  |  |  |  |
Share repurchase program, amount authorized to be repurchased | 5,000,000 | 4,450,000 | 7,500,000 | 5,000,000 |  |  |
Number of shares repurchased and retired |  |  |  |  | 118,968 | 466,109 | 398,372
Aggregate price of shares repurchased and retired |  |  |  |  | 2,190,000 | 9,062,000 | 9,054,000
Amount available for future repurchases |  |  |  |  | 1,400,000 |  |
Restricted shares |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |
Vested (in shares) |  |  |  |  | 134,384 | 216,528 | 164,086
Redemption of vested restricted shares in order to pay employee tax withholdings (in shares) |  |  |  |  | 37,642 | 69,207 | 50,724
Employee tax withholdings paid on redemption of vested restricted shares |  |  |  |  | 700,000 | 1,400,000 | 1,100,000
Employees and directors |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  | $ 2,900,000 | $ 4,900,000 | $ 5,700,000

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- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References No definition available. + Details
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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