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Investments (Details 2) - USD ($) $ in Thousands | Jun. 27, 2015 | Mar. 28, 2015 | Mar. 29, 2014
--- | --- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | $ 600 | $ 913 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 9,293 | 3,350 |
12 Months or Longer, Fair Value | 1,406 | 1,384 |
Total Fair Value | 10,699 | 4,734 |
Less than 12 Months, Unrealized Losses | 378 | 97 |
12 Months or Longer, Unrealized Losses | 85 | 39 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | (463) | (136) |
U.S. Treasury and Government Agencies [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 1 | 1 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 200 | 499 |
12 Months or Longer, Fair Value | 692 | 698 |
Total Fair Value | 892 | 1,197 |
Less than 12 Months, Unrealized Losses | 0 | 0 |
12 Months or Longer, Unrealized Losses | 11 | 5 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | (11) | (5) |
Mortgage-backed securities [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 14 | 23 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 2,753 | 438 |
12 Months or Longer, Fair Value | 292 | 330 |
Total Fair Value | 3,045 | 768 |
Less than 12 Months, Unrealized Losses | 17 | 2 |
12 Months or Longer, Unrealized Losses | 26 | 25 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | (43) | (27) |
States and political subdivisions [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 163 | 245 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 2,602 | 1,099 |
12 Months or Longer, Fair Value | 254 | 256 |
Total Fair Value | 2,856 | 1,355 |
Less than 12 Months, Unrealized Losses | 24 | 6 |
12 Months or Longer, Unrealized Losses | 8 | 6 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | (32) | (12) |
Corporate Debt Securities [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 0 | 2 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 781 |  | $ 247
12 Months or Longer, Fair Value | 0 | 0 |
Total Fair Value | 781 | 247 |
Less than 12 Months, Unrealized Losses | 1 | 4 |
12 Months or Longer, Unrealized Losses | 0 | 0 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | (1) | (4) |
Equity Securities [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 422 | 642 |
Investment Securities in a Continuous Unrealized Loss Position |  |  |
Less than 12 Months, Fair Value | 2,957 | 1,067 |
12 Months or Longer, Fair Value | 168 | 100 |
Total Fair Value | 3,125 | 1,167 |
Less than 12 Months, Unrealized Losses | 336 | 85 |
12 Months or Longer, Unrealized Losses | 40 | 3 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | $ (376) | $ (88) |

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