Marketable Securities (Details 2) - Municipal bonds - USD ($) $ in Thousands	Mar. 03, 2018	Mar. 04, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Due within one year	$ 423
Amortized Cost, Due after one year through five years	4,606
Amortized Cost, Due after five years through 10 years	3,349
Amortized Cost, Due after 10 years through 15 years	141
Amortized Cost, Due beyond 15 years	664
Amortized Cost	9,183	$ 9,595
Estimated Market Value, Due within one year	423
Estimated Market Value, Due after one year through five years	4,543
Estimated Market Value, Due after five years through 10 years	3,287
Estimated Market Value, Due after 10 years through 15 years	140
Estimated Market Value, Due beyond 15 years	660
Estimated Fair Value	$ 9,053	$ 9,589