Marketable Securities (Details 2) $ in Thousands	Jun. 03, 2017 USD ($)
Amortized Cost
Due within one year	$ 425
Due after one year through five years	2,656
Due after five years through 10 years	3,316
Due after 10 years through 15 years	1,291
Due beyond 15 years	200
Total	7,888
Estimated Fair Value
Due within one year	425
Due after one year through five years	2,696
Due after five years through 10 years	3,419
Due after 10 years through 15 years	1,236
Due beyond 15 years	200
Total	$ 7,976