Marketable Securities (Details 2) $ in Thousands	May 28, 2016 USD ($)
Marketable Securities [Abstract]
Amortized Cost, Due within one year	$ 325
Amortized Cost, Due after one year through five years	4,527
Amortized Cost, Due after five years through 10 years	6,013
Amortized Cost, Due after 10 years through 15 years	2,236
Amortized Cost, Total	13,101
Estimated Market Value, Due within one year	324
Estimated Market Value, Due after one year through five years	4,564
Estimated Market Value, Due after five years through 10 years	6,184
Estimated Market Value, Due after 10 years through 15 years	2,183
Estimated Market Value, Total	$ 13,255