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Note 10 - Shareholders' Equity (Details) - USD ($) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 03, 2016 | Jan. 03, 2016 | Dec. 28, 2014 | Dec. 29, 2013 | Nov. 19, 2015 | Oct. 07, 2014 | Mar. 04, 2012 | May. 31, 2010
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Common Stock, Shares Authorized (in Shares) |  |  |  |  |  |  | 120,000,000 |
Common Stock, Par or Stated Value Per Share (in Dollars per share) |  |  |  |  |  |  | $ 0.10 |
Common Stock, Shares, Issued (in Shares) |  |  |  |  |  |  | 65,372,375 |
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share) |  | $ 0.18 | $ 0.14 | $ 0.11 |  |  |  |
Stock Based Compensation Rate at which Employee Stock Option Exercisable |  | 100.00% |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) |  |  |  |  |  |  |  | 5,161,020
Number of Authorized stock, reduce by Issuance by other than Stock Option (in Shares) |  |  |  |  |  |  |  | 1.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 3 years 328 days |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | 3 years 328 days |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $ 900,000 | $ 900,000 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | 900,000 | 900,000 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  | 400,000 | $ 600,000 | $ 1,900,000 |  |  |  |
Proceeds from Stock Options Exercised |  | $ 400,000 | $ 400,000 | 1,900,000 |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in Shares) |  |  |  |  | 500,000 | 500,000 |  |
Treasury Stock, Shares, Acquired (in Shares) |  | 650,000 | 500,000 |  |  |  |  |
Treasury Stock, Shares, Retired (in Shares) |  | 650,000 | 500,000 |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) |  | $ 20.47 | $ 15.30 |  |  |  |  |
Common Class A [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Common Stock, Shares Authorized (in Shares) |  |  |  |  |  |  | 80,000,000 |
Common Stock, Par or Stated Value Per Share (in Dollars per share) |  |  |  |  |  |  | $ 0.10 |
Common Class B [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Common Stock, Shares Authorized (in Shares) |  |  |  |  |  |  | 40,000,000 |
Common Stock, Par or Stated Value Per Share (in Dollars per share) |  |  |  |  |  |  | $ 0.10 |
Maximum Percentage of Issued Shares to Outstanding Shares |  |  |  |  |  |  | 10.00% |
Common Stock, Shares, Issued (in Shares) |  |  |  |  |  |  | 6,459,556 |
Employee Stock Option [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Allocated Share-based Compensation Expense |  | $ 0 | $ 0 | 100,000 |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Allocated Share-based Compensation Expense |  | $ 13,900,000 | $ 4,000,000 | $ 7,900,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares) |  | 597,000 | 489,000 | 670,000 |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options | $ 9,700,000 | $ 9,700,000 |  |  |  |  |  |
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options |  | $ 5,500,000 | $ 1,000,000 | $ 3,000,000 |  |  |  |
Minimum [Member] | Employee Stock Option [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 1 year |  |  |  |  |  |
Share-based Compensation Arrangement by Share Based Payment Award Award, Exercisable Period |  | 3 years |  |  |  |  |  |
Minimum [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 2 years |  |  |  |  |  |
Maximum [Member] | Employee Stock Option [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 5 years |  |  |  |  |  |
Share-based Compensation Arrangement by Share Based Payment Award Award, Exercisable Period |  | 10 years |  |  |  |  |  |
Maximum [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |
Note 10 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 5 years |  |  |  |  |  |

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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 S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: 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 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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