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Marketable Securities (Details 1) - Municipal bonds $ in Thousands | Mar. 04, 2017 USD ($)
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Schedule of length of time that available-for-sale securities were in continuous unrealized loss positions |
Less Than 12 Months, Fair Value | $ 1,413
Less Than 12 Months, Unrealized Losses | (14)
Greater Than or Equal to 12 Months, Fair Value | 1,167
Greater Than or Equal to 12 Months, Unrealized Losses | (83)
Total Fair Value | 2,580
Total Unrealized Losses | $ (97)

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