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Investments (Tables) | 3 Months Ended
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Mar. 31, 2020
Investments [Abstract] |
Unrealized Gain (Loss) On Investments |
(Dollars in thousands) |  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | unrealized |  | unrealized |  | Fair
March 31, 2020 |  | cost |  | gains |  | losses |  | value
U.S. Government and Agency securities |  | $ | 13,602 |  | $ | 57 |  | $ | (34) |  | $ | 13,625
Municipal securities |  |  | 94,560 |  |  | 2,892 |  |  | (242) |  |  | 97,210
Trust preferred securities |  |  | 4,102 |  |  | — |  |  | (556) |  |  | 3,546
Agency mortgage-backed securities |  |  | 68,970 |  |  | 1,638 |  |  | (461) |  |  | 70,147
Private-label mortgage-backed securities |  |  | 316 |  |  | 11 |  |  | (4) |  |  | 323
Asset-backed securities |  |  | 24,197 |  |  | 28 |  |  | (1,036) |  |  | 23,189
|  | $ | 205,747 |  | $ | 4,626 |  | $ | (2,333) |  | $ | 208,040
(Dollars in thousands) |  |  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | unrealized |  | unrealized |  | Fair
December 31, 2019 |  | cost |  | gains |  | losses |  | value
U.S. Government and Agency securities |  | $ | 8,418 |  | $ | 30 |  | $ | (20) |  | $ | 8,428
Municipal securities |  |  | 90,865 |  |  | 1,418 |  |  | (997) |  |  | 91,286
Trust preferred securities |  |  | 4,097 |  |  | — |  |  | (130) |  |  | 3,967
Agency mortgage-backed securities |  |  | 58,503 |  |  | 435 |  |  | (234) |  |  | 58,704
Private-label mortgage-backed securities |  |  | 398 |  |  | 31 |  |  | — |  |  | 429
Asset-backed securities |  |  | 24,918 |  |  | 6 |  |  | (305) |  |  | 24,619
|  | $ | 187,199 |  | $ | 1,920 |  | $ | (1,686) |  | $ | 187,433
Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity |
(Dollars in thousands) |  | Amortized ‎cost |  | Fair ‎value
Due in one year or less |  | $ | 12,900 |  | $ | 12,978
Due after one year through five years |  |  | 31,461 |  |  | 31,369
Due after five years through ten years |  |  | 76,697 |  |  | 77,637
Due after ten years |  |  | 15,403 |  |  | 15,586
|  |  | 136,461 |  |  | 137,570
Mortgage-backed securities |  |  | 69,286 |  |  | 70,470
|  | $ | 205,747 |  | $ | 208,040
Composition Of Net Realized Securities Gains |
|  | For the Three Months Ended
|  | March 31,
(Dollars in thousands) |  | 2020 |  | 2019
Proceeds |  | $ | 165 |  | $ | 3,876
Gross gains realized |  |  | — |  |  | 33
Gross losses realized |  |  | (10) |  |  | (9)
Net gains (losses) realized |  | $ | (10) |  | $ | 24
Tax benefit (provision) on net (losses) gains realized |  | $ | 2 |  | $ | (5)
Schedule Of Unrealized Loss On Investments |
| March 31, 2020
| Less than 12 months |  | 12 months or more |  | Total
| Fair |  | Unrealized |  |  |  | Fair |  | Unrealized |  |  |  | Fair |  | Unrealized |  |
(Dollars in thousands) | Value |  | Losses |  | Count |  | Value |  | Losses |  | Count |  | Value |  | Losses |  | Count
U.S. Government and Agency ‎ securities | $ | 6,681 |  | $ | (27) |  | 8 |  | $ | 1,284 |  | $ | (7) |  | 7 |  | $ | 7,965 |  | $ | (34) |  | 15
Municipal securities |  | 19,666 |  |  | (235) |  | 21 |  |  | 796 |  |  | (7) |  | 1 |  |  | 20,462 |  |  | (242) |  | 22
Trust preferred securities |  | 840 |  |  | (119) |  | 1 |  |  | 2,706 |  |  | (437) |  | 4 |  |  | 3,546 |  |  | (556) |  | 5
Agency mortgage-backed securities |  | 22,506 |  |  | (459) |  | 35 |  |  | 312 |  |  | (2) |  | 1 |  |  | 22,818 |  |  | (461) |  | 36
Private-label mortgage-backed securities |  | 123 |  |  | (4) |  | 1 |  |  | — |  |  | — |  | — |  |  | 123 |  |  | (4) |  | 1
Asset-backed securities |  | 15,252 |  |  | (554) |  | 16 |  |  | 6,300 |  |  | (482) |  | 10 |  |  | 21,552 |  |  | (1,036) |  | 26
Total temporarily impaired ‎ securities | $ | 65,068 |  | $ | (1,398) |  | 82 |  | $ | 11,398 |  | $ | (935) |  | 23 |  | $ | 76,466 |  | $ | (2,333) |  | 105
| December 31, 2019
| Less than 12 months |  | 12 months or more |  | Total
| Fair |  | Unrealized |  |  |  | Fair |  | Unrealized |  |  |  | Fair |  | Unrealized |  |
(Dollars in thousands) | Value |  | Losses |  | Count |  | Value |  | Losses |  | Count |  | Value |  | Losses |  | Count
U.S. Government and Agency ‎ securities | $ | 2,559 |  | $ | (12) |  | 6 |  | $ | 1,335 |  | $ | (8) |  | 7 |  | $ | 3,894 |  | $ | (20) |  | 13
Municipal securities |  | 38,874 |  |  | (966) |  | 40 |  |  | 2,655 |  |  | (31) |  | 4 |  |  | 41,529 |  |  | (997) |  | 44
Trust preferred securities |  | — |  |  | — |  | — |  |  | 3,967 |  |  | (130) |  | 5 |  |  | 3,967 |  |  | (130) |  | 5
Agency mortgage-backed securities |  | 21,185 |  |  | (185) |  | 32 |  |  | 6,555 |  |  | (49) |  | 22 |  |  | 27,740 |  |  | (234) |  | 54
Asset-backed securities |  | 17,644 |  |  | (128) |  | 19 |  |  | 5,669 |  |  | (177) |  | 9 |  |  | 23,313 |  |  | (305) |  | 28
Total temporarily impaired ‎ securities | $ | 80,262 |  | $ | (1,291) |  | 97 |  | $ | 20,181 |  | $ | (395) |  | 47 |  | $ | 100,443 |  | $ | (1,686) |  | 144
Other Than Temporary Impairment, Credit Losses Recognized In Earnings |
|  | Three Months Ended
(Dollars in thousands) |  | March 31,
|  | 2020 |  | 2019
Balance of cumulative credit-related OTTI at January 1 |  | $ | 272 |  | $ | 272
Additions for credit-related OTTI not previously recognized |  |  | — |  |  | —
Additional increases for credit-related OTTI previously recognized when there is |  |  |  |  |  |
no intent to sell and no requirement to sell before recovery of amortized cost basis |  |  | — |  |  | —
Decreases for previously recognized credit-related OTTI because there was an intent to sell |  |  | — |  |  | —
Reduction for increases in cash flows expected to be collected |  |  | — |  |  | —
Balance of credit-related OTTI at March 31 |  | $ | 272 |  | $ | 272

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