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Investment Securities (Tables) | 12 Months Ended
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Dec. 31, 2015
Investments Debt And Equity Securities [Abstract] |
Schedule of amortized cost and fair value of debt securities classified as available-for-sale |
|  |  |  |  | Gross |  |  | Gross |  |  |  |
|  | Amortized |  |  | unrealized |  |  | unrealized |  |  |  |
(in thousands) |  | cost |  |  | gains |  |  | losses |  |  | Fair value |
December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government sponsored enterprises |  | $ | 73,605 |  |  | $ | 127 |  |  | $ | 235 |  |  | $ | 73,497 |
Asset-backed securities |  |  | 130,179 |  |  |  | 440 |  |  |  | 1,768 |  |  |  | 128,851 |
Obligations of states and political subdivisions |  |  | 32,224 |  |  |  | 493 |  |  |  | 11 |  |  |  | 32,706 |
Total available for sale securities |  | $ | 236,008 |  |  | $ | 1,060 |  |  | $ | 2,014 |  |  | $ | 235,054 |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government sponsored enterprises |  | $ | 57,002 |  |  | $ | 240 |  |  | $ | 143 |  |  | $ | 57,099 |
Asset-backed securities |  |  | 106,726 |  |  |  | 855 |  |  |  | 1,119 |  |  |  | 106,462 |
Obligations of states and political subdivisions |  |  | 34,925 |  |  |  | 583 |  |  |  | 71 |  |  |  | 35,437 |
Total available for sale securities |  | $ | 198,653 |  |  | $ | 1,678 |  |  | $ | 1,333 |  |  | $ | 198,998 |
Schedule of amortized cost and fair value of debt securities classified as available-for-sale by contractual maturity |
|  | Amortized |  |  | Fair |
(in thousands) |  | cost |  |  | value |
Due in one year or less |  | $ | 24,894 |  |  | $ | 24,890 |
Due after one year through five years |  |  | 67,513 |  |  |  | 67,614 |
Due after five years through ten years |  |  | 12,593 |  |  |  | 12,871 |
Due after ten years |  |  | 829 |  |  |  | 828 |
Total |  |  | 105,829 |  |  |  | 106,203 |
Asset-backed securities |  |  | 130,179 |  |  |  | 128,851 |
Total available for sale securities |  | $ | 236,008 |  |  | $ | 235,054 |
Schedule of gross unrealized losses on debt securities and fair value of related securities aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(in thousands) |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
At December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government sponsored enterprises |  | $ | 43,539 |  |  | $ | (222 | ) |  | $ | 1,002 |  |  | $ | (13 | ) |  | $ | 44,541 |  |  | $ | (235 | )
Asset-backed securities |  |  | 56,095 |  |  |  | (620 | ) |  |  | 43,576 |  |  |  | (1,148 | ) |  |  | 99,671 |  |  |  | (1,768 | )
Obligations of states and political subdivisions |  |  | 2,571 |  |  |  | (6 | ) |  |  | 718 |  |  |  | (5 | ) |  |  | 3,289 |  |  |  | (11 | )
Total |  | $ | 102,205 |  |  | $ | (848 | ) |  | $ | 45,296 |  |  | $ | (1,166 | ) |  | $ | 147,501 |  |  | $ | (2,014 | )
(in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government sponsored enterprises |  | $ | 2,983 |  |  | $ | (4 | ) |  | $ | 17,862 |  |  | $ | (139 | ) |  | $ | 20,845 |  |  | $ | (143 | )
Asset-backed securities |  |  | 10,314 |  |  |  | (50 | ) |  |  | 45,445 |  |  |  | (1,069 | ) |  |  | 55,759 |  |  |  | (1,119 | )
Obligations of states and political subdivisions |  |  | 3,667 |  |  |  | (15 | ) |  |  | 1,942 |  |  |  | (56 | ) |  |  | 5,609 |  |  |  | (71 | )
Total |  | $ | 16,964 |  |  | $ | (69 | ) |  | $ | 65,249 |  |  | $ | (1,264 | ) |  | $ | 82,213 |  |  | $ | (1,333 | )
Schedule of components of investment securities gains (losses), which are recognized in earnings |
(in thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Gains realized on sales |  | $ | 8 |  |  | $ | 86 |  |  | $ | 786 |
Losses realized on sales |  |  | 0 |  |  |  | (66 | ) |  |  | (8 | )
Other-than-temporary impairment recognized |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Investment securities gains |  | $ | 8 |  |  | $ | 20 |  |  | $ | 778 |

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