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Investment Securities - Information concerning investments with unrealized losses (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | $ 8,596 | $ 39,784
Less than 12 months, Unrealized Losses | 54 | 694
12 months or longer, Fair Value | 28,079 | 78,532
12 months or longer, Unrealized Losses | 530 | 2,512
Total, Fair Value | 36,675 | 118,316
Total, Unrealized Losses | 584 | 3,206
U.S. Agency |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 0 | 244
Less than 12 months, Unrealized Losses | 0 | 6
12 months or longer, Fair Value | 0 | 5,631
12 months or longer, Unrealized Losses | 0 | 154
Total, Fair Value | 0 | 5,875
Total, Unrealized Losses | 0 | 160
U.S. Agency mortgage-backed securities |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 4,602 | 17,718
Less than 12 months, Unrealized Losses | 20 | 177
12 months or longer, Fair Value | 10,804 | 39,983
12 months or longer, Unrealized Losses | 86 | 1,113
Total, Fair Value | 15,406 | 57,701
Total, Unrealized Losses | 106 | 1,290
Municipal [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 943 | 6,601
Less than 12 months, Unrealized Losses | 3 | 71
12 months or longer, Fair Value | 1,130 | 15,880
12 months or longer, Unrealized Losses | 47 | 567
Total, Fair Value | 2,073 | 22,481
Total, Unrealized Losses | 50 | 638
Corporate bonds and other securities [Member] |  |
Available-For-Sale-Securities-And-Held-To-Maturity-Securities |  |
Less than 12 months, Fair Value | 3,051 | 15,221
Less than 12 months, Unrealized Losses | 31 | 440
12 months or longer, Fair Value | 16,145 | 17,038
12 months or longer, Unrealized Losses | 397 | 678
Total, Fair Value | 19,196 | 32,259
Total, Unrealized Losses | $ 428 | $ 1,118

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- Definition Amount of accumulated pre-tax unrealized loss on securities that have been in a loss position for twelve months or longer recognized in Accumulated Other Comprehensive Income (AOCI). + References No definition available. + Details
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- Definition Amount of accumulated pre-tax unrealized loss on securities recognized in Accumulated Other Comprehensive Income (AOCI). + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
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