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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2016
Goodwill [Line Items] |
Schedule of Goodwill [Table Text Block] | The changes in the carrying amount of goodwill for the years ended December 31, 2016 and December 26, 2015 are as follows (in thousands):
| 2016 |  | 2015
Balance, beginning of year | $ | 10,258 |  |  | $ | 10,258 |
Goodwill acquired as part of acquisition during current year | 84,159 |  |  | — |
Impairment loss | — |  |  | — |
Balance, end of year | $ | 94,417 |  |  | $ | 10,258 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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