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Note E - Marketable Securities (Tables) | 9 Months Ended
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Dec. 28, 2014
Notes Tables |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Market Value |
December 28, 2014 |  | $ | 6,718 |  |  | $ | 101 |  |  | $ | - |  |  | $ | 6,819 |
March 30, 2014 |  | $ | 10,947 |  |  | $ | 240 |  |  | $ | - |  |  | $ | 11,187 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
Fair value of Municipal Bonds |  | Total |  |  | Less than 1 Year |  |  | 1 – 5 Years |  |  | 5 – 10 Years |  |  | After 10 Years |
December 28, 2014 |  | $ | 6,819 |  |  | $ | 4,463 |  |  | $ | 2,356 |  |  | $ | - |  |  | $ | - |

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