CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $) In Thousands, unless otherwise specified	4 Months Ended
Apr. 21, 2013	Apr. 15, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Labor, stock-based compensation	$ 69	$ 143
Selling, general and administrative, stock-based compensation	$ 1,123	$ 1,059

This element represents the expense recognized in selling, general and administrative expense during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees.

No definition available.

Name:	rrgb_AllocatedShareBasedCompensationExpenseSellingGeneralAndAdministrativeExpense
Namespace Prefix:	rrgb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration