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Securities Available for Sale (Details 3) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | $ 79,350 | $ 212,479
Unrealized Losses, Less Than 12 Months | (680) | (4,945)
Fair Value, 12 Months or Longer | 111,378 | 49,393
Unrealized Losses, 12 Months or Longer | (2,818) | (1,666)
Fair Value, Total | 190,728 | 261,872
Unrealized Losses, Total | (3,498) | (6,611)
Corporate bonds |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 397 | 786
Unrealized Losses, Less Than 12 Months | (3) | (8)
Fair Value, 12 Months or Longer | 383 | 0
Unrealized Losses, 12 Months or Longer | (5) | 0
Fair Value, Total | 780 | 786
Unrealized Losses, Total | (8) | (8)
Collateralized mortgage obligations |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 1,701 | 7,956
Unrealized Losses, Less Than 12 Months | (22) | (108)
Fair Value, 12 Months or Longer | 15,420 | 10,972
Unrealized Losses, 12 Months or Longer | (755) | (597)
Fair Value, Total | 17,121 | 18,928
Unrealized Losses, Total | (777) | (705)
Small Business Administration |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 0 | 8,770
Unrealized Losses, Less Than 12 Months | 0 | (205)
Fair Value, 12 Months or Longer | 14,182 | 7,890
Unrealized Losses, 12 Months or Longer | (396) | (325)
Fair Value, Total | 14,182 | 16,660
Unrealized Losses, Total | (396) | (530)
U.S. Treasury and U.S. government sponsored entities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 3,970 | 4,015
Unrealized Losses, Less Than 12 Months | (34) | (54)
Fair Value, 12 Months or Longer | 1,912 | 502
Unrealized Losses, 12 Months or Longer | (35) | 0
Fair Value, Total | 5,882 | 4,517
Unrealized Losses, Total | (69) | (54)
State and political subdivisions |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 33,188 | 92,560
Unrealized Losses, Less Than 12 Months | (220) | (2,745)
Fair Value, 12 Months or Longer | 25,721 | 286
Unrealized Losses, 12 Months or Longer | (423) | (15)
Fair Value, Total | 58,909 | 92,846
Unrealized Losses, Total | (643) | (2,760)
Mortgage-backed securities - residential |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 40,072 | 98,348
Unrealized Losses, Less Than 12 Months | (400) | (1,823)
Fair Value, 12 Months or Longer | 53,760 | 29,743
Unrealized Losses, 12 Months or Longer | (1,204) | (729)
Fair Value, Total | 93,832 | 128,091
Unrealized Losses, Total | (1,604) | (2,552)
Equity securities |  |
Investment securities with unrealized losses |  |
Fair Value, Less Than 12 Months | 22 | 44
Unrealized Losses, Less Than 12 Months | (1) | (2)
Fair Value, 12 Months or Longer | 0 | 0
Unrealized Losses, 12 Months or Longer | 0 | 0
Fair Value, Total | 22 | 44
Unrealized Losses, Total | $ (1) | $ (2)

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