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Investment Securities (Details 1) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | $ 93,576 | $ 58,486
Less than 12 months, Unrealized Losses | (2,486) | (472)
12 months or longer, Fair Value | 57,986 | 44,406
12 months or longer, Unrealized Losses | (2,954) | (1,231)
Total, Fair Value | 151,562 | 102,892
Total, Unrealized Losses | (5,440) | (1,703)
U.S. Agency [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 2,734 | 5,923
Less than 12 months, Unrealized Losses | (109) | (39)
12 months or longer, Fair Value | 3,689 | 399
12 months or longer, Unrealized Losses | (199) | (1)
Total, Fair Value | 6,423 | 6,322
Total, Unrealized Losses | (308) | (40)
U.S. Agency mortgage-backed securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 49,544 | 36,783
Less than 12 months, Unrealized Losses | (1,211) | (253)
12 months or longer, Fair Value | 29,471 | 22,625
12 months or longer, Unrealized Losses | (1,353) | (511)
Total, Fair Value | 79,015 | 59,408
Total, Unrealized Losses | (2,564) | (764)
Municipal [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 19,978 | 8,657
Less than 12 months, Unrealized Losses | (619) | (109)
12 months or longer, Fair Value | 11,847 | 7,727
12 months or longer, Unrealized Losses | (826) | (318)
Total, Fair Value | 31,825 | 16,384
Total, Unrealized Losses | (1,445) | (427)
Corporate bonds and other securities [Member] |  |
Information concerning investments with unrealized losses |  |
Less than 12 months, Fair Value | 21,320 | 7,123
Less than 12 months, Unrealized Losses | (547) | (71)
12 months or longer, Fair Value | 12,979 | 13,655
12 months or longer, Unrealized Losses | (576) | (401)
Total, Fair Value | 34,299 | 20,778
Total, Unrealized Losses | $ (1,123) | $ (472)

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