Financial Instruments (Details 2) $ in Thousands	Dec. 01, 2018 USD ($)
Amortized Cost
Due within one year	$ 447
Due after one year through five years	8,781
Due after five years through 10 years	2,541
Due after 10 years through 15 years	0
Due beyond 15 years	765
Total	12,534
Estimated Fair Value
Due within one year	441
Due after one year through five years	8,598
Due after five years through 10 years	2,493
Due after 10 years through 15 years	0
Due beyond 15 years	757
Total	$ 12,289