XML 37 R25.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 29, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Fiscal Year | Year end dates and the number of weeks in each fiscal year are shown in the table below for periods presented in this Form 10-K and for the upcoming fiscal year.
Fiscal Year |  | Year End Date |  | Number of Weeks in Fiscal Year
Current and Prior Fiscal Years: |  |  |  |
2019 |  | December 29, 2019 |  | 52 |
2018 |  | December 30, 2018 |  | 52 |
2017 |  | December 31, 2017 |  | 53 |
Upcoming Fiscal Year |  |  |  |
2020 |  | December 27, 2020 |  | 52 |
Schedule of estimated useful lives for property and equipment | The estimated useful lives for property and equipment are:
Buildings | 5 to 20 years
Leasehold improvements | Shorter of lease term or estimated useful life, not to exceed 20 years
Furniture, fixtures and equipment | 5 to 20 years
Computer equipment | 2 to 5 years
Schedule of computations for basic and diluted earnings per share | Basic weighted average shares outstanding is reconciled to diluted weighted average shares outstanding for the fiscal years ended December 29, 2019, December 30, 2018, and December 31, 2017 as follows (in thousands):
| 2019 |  | 2018 |  | 2017
Basic weighted average shares outstanding | 12,959 |  |  | 12,976 |  |  | 12,899 |
Dilutive effect of stock options and awards | — |  |  | — |  |  | 99 |
Diluted weighted average shares outstanding | 12,959 |  |  | 12,976 |  |  | 12,998 |
Awards excluded due to anti-dilutive effect on diluted earnings per share | 378 |  |  | 427 |  |  | 329 |

X
- Definition Schedule of Fiscal Period [Table Text Block] + References No definition available. + Details
Name: | rrgb_ScheduleofFiscalPeriodTableTextBlock
Namespace Prefix: | rrgb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration