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Securities Available-for-Sale (Details) - Schedule of unrealized losses not recognized in income - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Investment Securities: |  |
Investment Securities: Total, Fair Value | $ 308,617 | $ 278,357
Investment Securities: Total, Unrealized Losses | (9,594) | (4,470)
Investment Securities: Less than 12 Months, Fair Value | 197,495 | 168,028
Investment Securities: Less than 12 Months, Unrealized Losses | (4,036) | (1,631)
Investment Securities: 12 Months or Longer, Fair Value | 111,122 | 110,329
Investment Securities: 12 Months or Longer, Unrealized Losses | (5,558) | (2,839)
Federal agency obligations [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 47,925 | 39,813
Investment Securities: Total, Unrealized Losses | (1,125) | (416)
Investment Securities: Less than 12 Months, Fair Value | 37,267 | 28,407
Investment Securities: Less than 12 Months, Unrealized Losses | (708) | (213)
Investment Securities: 12 Months or Longer, Fair Value | 10,658 | 11,406
Investment Securities: 12 Months or Longer, Unrealized Losses | (417) | (203)
Residential mortgage pass-through securities [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 172,308 | 148,574
Investment Securities: Total, Unrealized Losses | (4,672) | (1,948)
Investment Securities: Less than 12 Months, Fair Value | 113,673 | 117,556
Investment Securities: Less than 12 Months, Unrealized Losses | (2,280) | (1,146)
Investment Securities: 12 Months or Longer, Fair Value | 58,635 | 31,018
Investment Securities: 12 Months or Longer, Unrealized Losses | (2,392) | (802)
Commercial mortgage pass-through securities [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 3,893 | 1,198
Investment Securities: Total, Unrealized Losses | (94) | (3)
Investment Securities: Less than 12 Months, Fair Value | 3,893 | 1,198
Investment Securities: Less than 12 Months, Unrealized Losses | (94) | (3)
Investment Securities: 12 Months or Longer, Fair Value |  |
Investment Securities: 12 Months or Longer, Unrealized Losses |  |
Obligations of U.S. states and political subdivisions [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 65,916 | 57,685
Investment Securities: Total, Unrealized Losses | (3,258) | (1,334)
Investment Securities: Less than 12 Months, Fair Value | 30,625 | 17,909
Investment Securities: Less than 12 Months, Unrealized Losses | (832) | (246)
Investment Securities: 12 Months or Longer, Fair Value | 35,291 | 39,776
Investment Securities: 12 Months or Longer, Unrealized Losses | (2,426) | (1,088)
Corporate bonds and notes [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 15,653 | 11,074
Investment Securities: Total, Unrealized Losses | (441) | (271)
Investment Securities: Less than 12 Months, Fair Value | 11,012 | 1,965
Investment Securities: Less than 12 Months, Unrealized Losses | (122) | (21)
Investment Securities: 12 Months or Longer, Fair Value | 4,641 | 9,109
Investment Securities: 12 Months or Longer, Unrealized Losses | (319) | (250)
Asset-backed securities [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 2,821 | 7,428
Investment Securities: Total, Unrealized Losses | (4) | (37)
Investment Securities: Less than 12 Months, Fair Value | 924 | 993
Investment Securities: Less than 12 Months, Unrealized Losses |  | (2)
Investment Securities: 12 Months or Longer, Fair Value | 1,897 | 6,435
Investment Securities: 12 Months or Longer, Unrealized Losses | (4) | (35)
Certificates of deposit [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value | 101 |
Investment Securities: Total, Unrealized Losses |  |
Investment Securities: Less than 12 Months, Fair Value | 101 |
Investment Securities: Less than 12 Months, Unrealized Losses |  |
Investment Securities: 12 Months or Longer, Fair Value |  |
Investment Securities: 12 Months or Longer, Unrealized Losses |  |
Trust preferred securities [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value |  | 1,469
Investment Securities: Total, Unrealized Losses |  | (111)
Investment Securities: Less than 12 Months, Fair Value |  |
Investment Securities: Less than 12 Months, Unrealized Losses |  |
Investment Securities: 12 Months or Longer, Fair Value |  | 1,469
Investment Securities: 12 Months or Longer, Unrealized Losses |  | (111)
Equity securities [Member] |  |
Investment Securities: |  |
Investment Securities: Total, Fair Value |  | 11,116
Investment Securities: Total, Unrealized Losses |  | (350)
Investment Securities: Less than 12 Months, Fair Value |  |
Investment Securities: Less than 12 Months, Unrealized Losses |  |
Investment Securities: 12 Months or Longer, Fair Value |  | 11,116
Investment Securities: 12 Months or Longer, Unrealized Losses |  | $ (350)

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