Information Related to Stock-Based compensation (Detail) - USD ($) $ in Thousands		3 Months Ended
		Apr. 04, 2017	Mar. 29, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Capitalized	[1]	$ 66	$ 78
Labor and benefits
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation		468	403
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation		$ 1,168	$ 1,147

[1] Capitalized stock-based compensation relates to our restaurant development personnel and is included in "Property and equipment, net" on the Consolidated Balance Sheets.