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Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 29, 2017
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Supplemental Quarterly Financial Information |
|  | Quarter Ended |
|  | March 31, 2017 |  |  | June 30, 2017 |  |  | September 29, 2017 |  |  | December 29, 2017 |
Total revenue |  | $ | 65,069 |  |  | $ | 67,726 |  |  | $ | 65,947 |  |  | $ | 64,510 |
Operating income |  | $ | 7,964 |  |  | $ | 6,464 |  |  | $ | 7,874 |  |  | $ | 8,520 |
Income from continuing operations |  | $ | 7,874 |  |  | $ | 6,337 |  |  | $ | 7,690 |  |  | $ | 8,337 |
Net income (1) |  | $ | 7,874 |  |  | $ | 4,750 |  |  | $ | 5,289 |  |  | $ | 9,441 |
Basic net income per common share (2) |  | $ | 0.27 |  |  | $ | 0.16 |  |  | $ | 0.18 |  |  | $ | 0.33 |
Diluted net income per common share (2) |  | $ | 0.24 |  |  | $ | 0.15 |  |  | $ | 0.17 |  |  | $ | 0.29 |
|  | Quarter Ended |
|  | April 1, 2016 |  |  | July 1, 2016 |  |  | September 30, 2016 |  |  | December 30, 2016 |
Total revenue |  | $ | 61,973 |  |  | $ | 68,178 |  |  | $ | 66,810 |  |  | $ | 62,946 |
Operating income |  | $ | 7,240 |  |  | $ | 8,638 |  |  | $ | 9,007 |  |  | $ | 9,668 |
Income from continuing operations |  | $ | 7,199 |  |  | $ | 8,528 |  |  | $ | 8,870 |  |  | $ | 9,569 |
Net income |  | $ | 4,382 |  |  | $ | 5,446 |  |  | $ | 5,488 |  |  | $ | 6,225 |
Basic net income per common share (2) |  | $ | 0.15 |  |  | $ | 0.19 |  |  | $ | 0.19 |  |  | $ | 0.22 |
Diluted net income per common share (2) |  | $ | 0.13 |  |  | $ | 0.17 |  |  | $ | 0.17 |  |  | $ | 0.19 |
(1) | The first quarter of 2017 included a tax benefit for the change in accounting on the vesting of share-based awards. The fourth quarter of 2017 included a tax benefit for the revaluation of the deferred tax liabilities as a result of the recent enacted tax legislation.
(2) | Quarterly basic and diluted net income per common share were computed independently for each quarter and do not necessarily total to the year to date basic and diluted net income per common share.

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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