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Investments (Details 2) - USD ($) $ in Thousands | Dec. 30, 2017 | Apr. 01, 2017
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Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | $ 4,092 | $ 2,582
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 8,297 | 8,563
12 Months or Longer, Fair Value | 6,645 | 4,203
Total Fair Value | 14,942 | 12,766
Less than 12 Months, Unrealized Losses | (157) | (188)
12 Months or Longer, Unrealized Losses | (229) | (173)
Gross Unrealized Losses | (386) | (361)
Available-for-sale Securities | 30,487 | 24,162
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 | 0 | 0
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 296 | 349
12 Months or Longer, Fair Value | 0 | 0
Total Fair Value | 296 | 349
Less than 12 Months, Unrealized Losses | (4) | (1)
12 Months or Longer, Unrealized Losses | 0 | 0
Gross Unrealized Losses | (4) | (1)
Mortgage-backed securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 1 | 3
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 3,308 | 3,449
12 Months or Longer, Fair Value | 3,860 | 1,962
Total Fair Value | 7,168 | 5,411
Less than 12 Months, Unrealized Losses | (32) | (38)
12 Months or Longer, Unrealized Losses | (72) | (52)
Gross Unrealized Losses | (104) | (90)
States and political subdivisions [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 142 | 145
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 2,649 | 1,948
12 Months or Longer, Fair Value | 2,309 | 2,084
Total Fair Value | 4,958 | 4,032
Less than 12 Months, Unrealized Losses | (22) | (36)
12 Months or Longer, Unrealized Losses | (120) | (81)
Gross Unrealized Losses | (142) | (117)
Corporate Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 2 | 4
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 1,012 | 1,424
12 Months or Longer, Fair Value | 372 | 0
Total Fair Value | 1,384 | 1,424
Less than 12 Months, Unrealized Losses | (8) | (23)
12 Months or Longer, Unrealized Losses | (15) | 0
Gross Unrealized Losses | (23) | (23)
Equity Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 3,947 | 2,430
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 1,032 | 1,393
12 Months or Longer, Fair Value | 104 | 157
Total Fair Value | 1,136 | 1,550
Less than 12 Months, Unrealized Losses | (91) | (90)
12 Months or Longer, Unrealized Losses | (22) | (40)
Gross Unrealized Losses | (113) | (130)
Certificates of Deposit [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Investment Securities in a Continuous Unrealized Loss Position |  |
Gross Unrealized Losses | 0 | 0
Available-for-sale Securities | $ 2,762 | $ 1,000

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