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Acquisition of Business (Summary of Fair Value of Assets Acquired and Liabilities Assumed - Nell's Family Market Store) (Details) - USD ($) $ in Thousands | Dec. 30, 2017 | Dec. 31, 2016 | Oct. 30, 2016
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 52,330 | $ 52,330 |
Nell's Family Market [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Inventories |  |  | $ 401
Prepaid expenses and other current assets |  |  | 39
Total current assets |  |  | 440
Property and equipment, net |  |  | 8,625
Goodwill |  |  | 3,913
Intangible and other assets, net |  |  | 23
Total fair value of assets acquired |  |  | 13,001
Accrued expenses |  |  | (3)
Total current liabilities |  |  | (3)
Total fair value of assets acquired and liabilties assumed |  |  | $ 12,998

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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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