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Marketable Securities (Tables) | 9 Months Ended
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Dec. 02, 2017
Marketable Securities [Abstract] |
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale | arketable securities are classified as available for sale:
(In thousands) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
December 2, 2017 |  |  |  |  |  |  |
Municipal bonds | 10,334 |  |  | 17 |  |  | (103 | ) |  | 10,248 |
March 4, 2017 |  |  |  |  |  |  |
Municipal bonds | 9,595 |  |  | 91 |  |  | (97 | ) |  | 9,589 |
Schedule of amortized cost and estimated fair values of investments by contractual maturity | The amortized cost and estimated fair values of municipal bonds at December 2, 2017, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities, as borrowers may have the right to call or prepay obligations with or without penalty.
(In thousands) | Amortized Cost |  | Estimated Fair Value
Due within one year | $ | 482 |  |  | $ | 482 |
Due after one year through five years | 4,418 |  |  | 4,385 |
Due after five years through 10 years | 4,627 |  |  | 4,578 |
Due after 10 years through 15 years | 141 |  |  | 141 |
Due beyond 15 years | 666 |  |  | 662 |
Total | $ | 10,334 |  |  | $ | 10,248 |

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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