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Investment Securities (Details 1) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | $ 96,306 | $ 58,486
Less than 12 months, Unrealized Losses | (2,271) | (472)
12 months or longer, Fair Value | 41,991 | 44,406
12 months or longer, Unrealized Losses | (1,932) | (1,231)
Total, Fair Value | 138,297 | 102,892
Total, Unrealized Losses | (4,203) | (1,703)
U.S. Agency [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 4,684 | 5,923
Less than 12 months, Unrealized Losses | (158) | (39)
12 months or longer, Fair Value | 1,846 | 399
12 months or longer, Unrealized Losses | (80) | (1)
Total, Fair Value | 6,530 | 6,322
Total, Unrealized Losses | (238) | (40)
U.S. Agency mortgage-backed securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 53,287 | 36,783
Less than 12 months, Unrealized Losses | (1,273) | (253)
12 months or longer, Fair Value | 18,095 | 22,625
12 months or longer, Unrealized Losses | (780) | (511)
Total, Fair Value | 71,382 | 59,408
Total, Unrealized Losses | (2,053) | (764)
Municipal [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 19,815 | 8,657
Less than 12 months, Unrealized Losses | (469) | (109)
12 months or longer, Fair Value | 9,465 | 7,727
12 months or longer, Unrealized Losses | (602) | (318)
Total, Fair Value | 29,280 | 16,384
Total, Unrealized Losses | (1,071) | (427)
Corporate bonds and other securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 18,520 | 7,123
Less than 12 months, Unrealized Losses | (371) | (71)
12 months or longer, Fair Value | 12,585 | 13,655
12 months or longer, Unrealized Losses | (470) | (401)
Total, Fair Value | 31,105 | 20,778
Total, Unrealized Losses | $ (841) | $ (472)

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