Stock-Based Compensation (Details 3) - Restricted Stock Unit [Member] - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Nov. 29, 2019	Nov. 30, 2018	Dec. 01, 2017
Director [Member]
Share-based Goods and Non-employee Services Transaction [Line Items]
Non-Employee Director Aggregate Grant Value Per Award	$ 0.3
Numbers of Days Used to Calculate Average Stock Price	30 days
Annual Vesting Percentage For Director Grants	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Existing Non-Employee Directors [Member]
Share-based Goods and Non-employee Services Transaction [Line Items]
Annual equity grants to existing directors	10	11	18
New Non-Employee Directors [Member]
Share-based Goods and Non-employee Services Transaction [Line Items]
Initial equity grants to new directors	1	1	0