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Stock Compensation Plans (Details Narrative) - shares | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2011 | Jun. 30, 2005 | Oct. 31, 2001 | Oct. 31, 2000 | Dec. 30, 2017 | Dec. 31, 2016 | Dec. 26, 2015 | Dec. 30, 2014 | Dec. 26, 2011 | Dec. 28, 2013 | Dec. 26, 2009
Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 1,055,000 | 1,241,000 | 1,184,000 |  |  |  |
Outstanding awards weighted-average remaining contract life |  |  |  |  | 1 year 3 months 14 days |  |  |  |  |  |
Stock Option & Stock Appreciation Rights [Member] |  |  |  |  |  |  |  |  |  |  |
Outstanding awards weighted-average remaining contract life |  |  |  |  | 2 years 4 months 10 days |  |  |  |  |  |
Exercisable awards weighted-average remaining contract life |  |  |  |  | 2 years 18 days |  |  |  |  |  |
2011 Non-employee Directors' Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) | 122,592 |  |  |  |  |  |  |  |  |  |
Award vesting period | 2 years |  |  |  |  |  |  |  |  |  |
Award expiration period | 10 years |  |  |  |  |  |  |  |  |  |
2011 Non-employee Directors' Equity Incentive Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 10,432 | 12,984 | 12,008 |  |  |  |
2005 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  | 10,000,000 |  |  |  |  |  |  |  | 13,000,000 |
Number of additional authorized shares issued (in shares) |  |  |  |  |  |  |  | 3,000,000 |  |  |
2005 Equity Incentive Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  | 3 years |  |  |  |  |  |  |  |  |
Number of shares granted (in shares) |  |  |  |  | 1,044,045 | 1,228,427 | 1,171,905 |  |  |  |
Description of vesting period |  |  |  |  | RSUs granted prior to December 10, 2012 vested or are vesting evenly over a period of five years. |  |  |  |  |  |
2005 Equity Incentive Plan [Member] | Stock Option & Stock Appreciation Rights [Member] |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  | 5 years |  |  |  |  |  |  |  |  |
Award expiration period |  | 10 years |  |  |  |  |  |  |  |  |
2000 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  |  |  | 7,000,000 |  |  |  |  |  |  |
2000 Equity Incentive Plan [Member] | Stock Option & Stock Appreciation Rights [Member] |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  | 5 years |  |  |  |  |  |  |  |
Award expiration period |  |  | 10 years |  |  |  |  |  |  |  |
2000 Non-employee Directors' Option Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Maximum number of authorized shares available for issuance (in shares) |  |  | 100,000 |  |  |  |  |  |  |  | 250,000
Award vesting period |  |  |  | 3 years |  |  |  |  |  |  |
Award expiration period |  |  |  | 10 years |  |  |  |  |  |  |
Number of additional authorized shares issued (in shares) |  |  |  |  |  |  |  |  | 150,000 |  |

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- Definition Weighted average remaining contractual term for stock option and equity-based awards excluding options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for stock option and equity-based awards excluding options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of additional shares authorized for issuance under an established share-based compensation plan. + References No definition available. + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements. + 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 (a) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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