Note 11 - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
Components of Net Periodic Pension Cost:
Service cost	$ 105	$ 78	$ 71
Interest cost	374	373	350
Amortization of transition obligation	42	42	42
Amortization of other loss	195	123	81
Net periodic pension cost	$ 716	$ 616	$ 544