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Securities Available-for-Sale (Details) - Schedule of unrealized losses not recognized in income - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | $ 208,570 | $ 301,569
Investment Securities Available-for-Sale: Total, Unrealized Losses | (2,573) | (9,210)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value | 49,156 | 60,601
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses | (120) | (559)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 159,414 | 240,968
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | (2,453) | (8,651)
Federal agency obligations [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | 4,260 | 35,472
Investment Securities Available-for-Sale: Total, Unrealized Losses | (15) | (605)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value |  | 810
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses |  | (1)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 4,260 | 34,662
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | (15) | (604)
Residential mortgage pass-through securities [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | 147,392 | 178,365
Investment Securities Available-for-Sale: Total, Unrealized Losses | (1,403) | (4,602)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value | 42,750 | 42,040
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses | (73) | (393)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 104,642 | 136,325
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | (1,330) | (4,209)
Obligations of U.S. states and political subdivisions [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | 41,825 | 64,367
Investment Securities Available-for-Sale: Total, Unrealized Losses | (819) | (3,402)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value |  | 7,765
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses |  | (21)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 41,825 | 56,602
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | (819) | (3,381)
Corporate bonds and notes [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | 8,696 | 15,534
Investment Securities Available-for-Sale: Total, Unrealized Losses | (278) | (540)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value | 2,000 | 7,767
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses |  | (133)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 6,696 | 7,767
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | (278) | (407)
Asset-backed securities [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value | 6,397 | 3,957
Investment Securities Available-for-Sale: Total, Unrealized Losses | (58) | (16)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value | 4,406 | 2,219
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses | (47) | (11)
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value | 1,991 | 1,738
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses | $ (11) | (5)
Commercial mortgage pass-through securities [Member] |  |
Investment Securities Available-for-Sale: |  |
Investment Securities Available-for-Sale: Total, Fair Value |  | 3,874
Investment Securities Available-for-Sale: Total, Unrealized Losses |  | (45)
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value |  |
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses |  |
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value |  | 3,874
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses |  | $ (45)

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