Available-for-sale Securities [Table Text Block] |
| | | 1 year | 1 to 5 | 5 to 10 | After 10 | Fair | | Gross Unrealized | | Amortized | (Dollars in thousands) | | or less | years | years | years | Value | | Gains | Losses | | Cost | December 31, 2019 | | | | | | | | | | | | | Agency obligations (a) | $ | 4,993 | 27,245 | 18,470 | — | 50,708 | | 215 | 98 | | $ | 50,591 | Agency RMBS (a) | | — | 560 | 4,510 | 118,207 | 123,277 | | 798 | 261 | | | 122,740 | State and political subdivisions | | — | 1,355 | 6,166 | 54,396 | 61,917 | | 2,104 | 9 | | | 59,822 | | Total available-for-sale | $ | 4,993 | 29,160 | 29,146 | 172,603 | 235,902 | | 3,117 | 368 | | $ | 233,153 | December 31, 2018 | | | | | | | | | | | | | Agency obligations (a) | $ | 14,437 | 19,865 | 16,869 | — | 51,171 | | 25 | 1,200 | | $ | 52,346 | Agency RMBS (a) | | — | — | 8,368 | 110,230 | 118,598 | | 65 | 3,738 | | $ | 122,271 | State and political subdivisions | | — | 3,682 | 7,726 | 58,624 | 70,032 | | 518 | 692 | | $ | 70,206 | | Total available-for-sale | $ | 14,437 | 23,547 | 32,963 | 168,854 | 239,801 | | 608 | 5,630 | | $ | 244,823 | (a) Includes securities issued by U.S. government agencies or government sponsored entities. Expected maturities of | these securities may differ from contractual maturities because issues may have the right to call or repay obligations | with or without prepayment penalties. |
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Available-for-sale Securities, Continuous Unrealized Loss Position [Table Text Block] |
| | | | Less than 12 Months | | | 12 Months or Longer | | | Total | | | | | Fair | | | Unrealized | | | Fair | | | Unrealized | | | Fair | | | Unrealized | (Dollars in thousands) | | Value | | | Losses | | | Value | | | Losses | | | Value | | | Losses | December 31, 2019: | | | | | | | | | | | | | | | | | | Agency obligations | $ | 24,734 | | | 97 | | | 4,993 | | | 1 | | | 29,727 | | $ | 98 | Agency RMBS | | 40,126 | | | 98 | | | 21,477 | | | 163 | | | 61,603 | | | 261 | State and political subdivisions | | 2,741 | | | 9 | | | — | | | — | | | 2,741 | | | 9 | | | Total | $ | 67,601 | | | 204 | | | 26,470 | | | 164 | | | 94,071 | | $ | 368 |
| | | | | | | | | | | | | | | | | | | | December 31, 2018: | | | | | | | | | | | | | | | | | | Agency obligations | $ | 4,724 | | | 28 | | | 44,307 | | | 1,172 | | | 49,031 | | $ | 1,200 | Agency RMBS | | 12,325 | | | 238 | | | 99,184 | | | 3,500 | | | 111,509 | | | 3,738 | State and political subdivisions | | 14,840 | | | 181 | | | 14,384 | | | 511 | | | 29,224 | | | 692 | | | Total | $ | 31,889 | | | 447 | | | 157,875 | | | 5,183 | | | 189,764 | | $ | 5,630 |
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