Note 7 - Property and Equipment (Details Textual) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
	Jan. 23, 2020	Nov. 30, 2019	Nov. 24, 2018	Nov. 25, 2017
Proceeds from Sale of Property, Plant, and Equipment, Total		$ 1,643	$ 2,689	$ 4,474
Subsequent Event [Member]
Proceeds from Sale of Property, Plant, and Equipment, Total	$ 1,639
Other Current Assets [Member]
Assets Held-for-sale, Not Part of Disposal Group, Current, Total		$ 1,569