Note 9 - Post Employment Benefit Obligations - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 02, 2019	Feb. 24, 2018
Service cost	$ 47	$ 49
Interest cost	110	105
Amortization of prior service costs	31	31
Amortization of transition obligation		11
Amortization of loss	46	65
Net periodic pension cost	$ 234	$ 261