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Organization and Business: (Details) - item | 12 Months Ended
--- | ---
Dec. 30, 2017 | Dec. 31, 2016 | Dec. 26, 2015
Franchising activity |  |  |
Number of weeks in a fiscal year | 52 | 53 | 52
Number of franchises in operation at the beginning of the period | 1,186 |  |
OPENED | 49 |  |
CLOSED | (24) |  |
Number of franchises in operation at the end of the period | 1,211 | 1,186 |
Plato's Closet | US and Canada |  |  |
Franchising activity |  |  |
Number of franchises in operation at the beginning of the period | 468 |  |
OPENED | 14 |  |
CLOSED | (6) |  |
Number of franchises in operation at the end of the period | 476 | 468 |
Once Upon A Child | US and Canada |  |  |
Franchising activity |  |  |
Number of franchises in operation at the beginning of the period | 348 |  |
OPENED | 18 |  |
CLOSED | (6) |  |
Number of franchises in operation at the end of the period | 360 | 348 |
Play It Again Sports | US and Canada |  |  |
Franchising activity |  |  |
Number of franchises in operation at the beginning of the period | 283 |  |
OPENED | 6 |  |
CLOSED | (8) |  |
Number of franchises in operation at the end of the period | 281 | 283 |
Style Encore | US |  |  |
Franchising activity |  |  |
Number of franchises in operation at the beginning of the period | 52 |  |
OPENED | 11 |  |
CLOSED | (2) |  |
Number of franchises in operation at the end of the period | 61 | 52 |
Music Go Round | US |  |  |
Franchising activity |  |  |
Number of franchises in operation at the beginning of the period | 35 |  |
CLOSED | (2) |  |
Number of franchises in operation at the end of the period | 33 | 35 |

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- Definition The number of franchised outlets in operation at the balance sheet date when there are significant changes in franchisor-owned outlets or franchised outlets during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 952 -SubTopic 605 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68064525&loc=d3e68639-108044 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 952 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68051204&loc=SL51750552-203207 + Details
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