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Investments (Details 2) - USD ($) $ in Thousands | Sep. 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 | $ 3,522 | $ 2,582
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 5,848 | 8,563
12 Months or Longer, Fair Value | 6,007 | 4,203
Total Fair Value | 11,855 | 12,766
Less than 12 Months, Unrealized Losses | (99) | (188)
12 Months or Longer, Unrealized Losses | (219) | (173)
Gross Unrealized Losses | (318) | (361)
Available-for-sale Securities | 27,713 | 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 | 648 | 349
12 Months or Longer, Fair Value | 0 | 0
Total Fair Value | 648 | 349
Less than 12 Months, Unrealized Losses | (2) | (1)
12 Months or Longer, Unrealized Losses | 0 | 0
Gross Unrealized Losses | (2) | (1)
Mortgage-backed securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 2 | 3
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 2,475 | 3,449
12 Months or Longer, Fair Value | 3,253 | 1,962
Total Fair Value | 5,728 | 5,411
Less than 12 Months, Unrealized Losses | (22) | (38)
12 Months or Longer, Unrealized Losses | (73) | (52)
Gross Unrealized Losses | (95) | (90)
States and political subdivisions [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 168 | 145
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 952 | 1,948
12 Months or Longer, Fair Value | 2,654 | 2,084
Total Fair Value | 3,606 | 4,032
Less than 12 Months, Unrealized Losses | (4) | (36)
12 Months or Longer, Unrealized Losses | (120) | (81)
Gross Unrealized Losses | (124) | (117)
Corporate Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 4 | 4
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 875 | 1,424
12 Months or Longer, Fair Value | 0 | 0
Total Fair Value | 875 | 1,424
Less than 12 Months, Unrealized Losses | (13) | (23)
12 Months or Longer, Unrealized Losses | 0 | 0
Gross Unrealized Losses | (13) | (23)
Equity Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 3,348 | 2,430
Investment Securities in a Continuous Unrealized Loss Position |  |
Less than 12 Months, Fair Value | 898 | 1,393
12 Months or Longer, Fair Value | 100 | 157
Total Fair Value | 998 | 1,550
Less than 12 Months, Unrealized Losses | (58) | (90)
12 Months or Longer, Unrealized Losses | (26) | (40)
Gross Unrealized Losses | (84) | (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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