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Transactions With Related Parties (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Mar. 08, 2019 | May 06, 2016 | Dec. 28, 2018 | Dec. 29, 2017 | Dec. 30, 2016
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  | 1,500 |  |  |
Total cost |  |  | $ 1,204 | $ 11,298 | $ 30,065
Purchase price per share |  | $ 14.77 |  |  |
Director [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  |  | 59 |  |
Total cost |  |  | $ 1,200 |  |
Purchase price per share |  |  | $ 20.13 |  |
Director and CFO [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  |  | 53 |  |
Total cost |  |  | $ 1,000 |  |
Purchase price per share |  |  | $ 18.33 |  |
Chief Operating Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  | 732 |  |  |
Chief Financial Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  | 73 |  |  |
Chief Executive Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock |  | 697 |  |  |
Restricted Stock Units (RSUs) [Member] | Chief Operating Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of shares to cover withholding taxes |  |  | 73 |  |
Value of purchased shares to cover withholding taxes |  |  | $ 1,300 |  |
Restricted Stock Units (RSUs) [Member] | Chief Financial Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of shares to cover withholding taxes |  |  | 73 |  |
Value of purchased shares to cover withholding taxes |  |  | $ 1,300 |  |
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of shares to cover withholding taxes |  |  | 73 |  |
Value of purchased shares to cover withholding taxes |  |  | $ 1,300 |  |
Subsequent Event [Member] | Director and Executives [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Repurchase of common stock | 28 |  |  |  |
Total cost | $ 500 |  |  |  |
Purchase price per share | $ 16.25 |  |  |  |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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