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Investment Securities | 9 Months Ended
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Sep. 30, 2021
Investment Securities |
2. Investment Securities |
(2) | Investment Securities
| Investment securities available for sale at September 30, 2021 and December 31, 2020 are as follows:
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
|  | September 30, 2021 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S Treasuries |  | $ | 7,963 |  |  |  | 39 |  |  |  | 12 |  |  |  | 7,990 |
U.S. Government |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
sponsored enterprises |  |  | 14,566 |  |  |  | 289 |  |  |  | 178 |  |  |  | 14,677 |
Mortgage-backed securities |  |  | 222,526 |  |  |  | 2,427 |  |  |  | 1,648 |  |  |  | 223,305 |
State and political subdivisions |  |  | 153,551 |  |  |  | 4,327 |  |  |  | 945 |  |  |  | 156,933 |
Total |  | $ | 398,606 |  |  |  | 7,082 |  |  |  | 2,783 |  |  |  | 402,905 |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
|  | December 31, 2020 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S. Government |  |  |  |  |  |  |  |  |  |  |  |
sponsored enterprises |  | $ | 7,384 |  |  |  | 331 |  |  |  | 208 |  |  |  | 7,507 |
Mortgage-backed securities |  |  | 143,095 |  |  |  | 2,812 |  |  |  | 593 |  |  |  | 145,314 |
State and political subdivisions |  |  | 87,757 |  |  |  | 4,758 |  |  |  | 87 |  |  |  | 92,428 |
Total |  | $ | 238,236 |  |  |  | 7,901 |  |  |  | 888 |  |  |  | 245,249 |
The current fair value and associated unrealized losses on investments in securities with unrealized losses at September 30, 2021 and December 31, 2020 are summarized in the tables below, with the length of time the individual securities have been in a continuous loss position.
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | September 30, 2021 |
|  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
U.S. Treasuries |  | $ | 4,994 |  |  |  | 12 |  |  |  | - |  |  |  | - |  |  |  | 4,994 |  |  |  | 12 |
U.S. Government |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
sponsored enterprises |  |  | 5,386 |  |  |  | 5 |  |  |  | 3,442 |  |  |  | 173 |  |  |  | 8,828 |  |  |  | 178 |
Mortgage-backed securities |  |  | 114,889 |  |  |  | 1,505 |  |  |  | 5,897 |  |  |  | 143 |  |  |  | 120,786 |  |  |  | 1,648 |
State and political subdivisions |  |  | 37,729 |  |  |  | 800 |  |  |  | 3,757 |  |  |  | 145 |  |  |  | 41,486 |  |  |  | 945 |
Total |  | $ | 162,998 |  |  |  | 2,322 |  |  |  | 13,096 |  |  |  | 461 |  |  |  | 176,094 |  |  |  | 2,783 |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | December 31, 2020 |
|  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
U.S. Government |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
sponsored enterprises |  | $ | - |  |  |  | - |  |  |  | 4,193 |  |  |  | 208 |  |  |  | 4,193 |  |  |  | 208 |
Mortgage-backed securities |  |  | 80,827 |  |  |  | 565 |  |  |  | 4,762 |  |  |  | 28 |  |  |  | 85,589 |  |  |  | 593 |
State and political subdivisions |  |  | 7,126 |  |  |  | 87 |  |  |  | - |  |  |  | - |  |  |  | 7,126 |  |  |  | 87 |
Total |  | $ | 87,953 |  |  |  | 652 |  |  |  | 8,955 |  |  |  | 236 |  |  |  | 96,908 |  |  |  | 888 |
| At September 30, 2021, unrealized losses in the investment securities portfolio relating to debt securities totaled $2.8 million. The unrealized losses on these debt securities arose due to changing interest rates and are considered to be temporary. From the September 30, 2021 tables above, one out of two U.S. Treasury securities, 35 out of 145 securities issued by state and political subdivisions and 43 out of 97 securities issued by U.S. Government sponsored enterprises contained unrealized losses. These unrealized losses are considered temporary because of acceptable financial condition and results of operations of entities that issued each security and the repayment sources of principal and interest on U.S. Government sponsored enterprises, including mortgage-backed securities, are government backed. The amortized cost and estimated fair value of investment securities available for sale at September 30, 2021, by contractual maturity, are shown below. Expected maturities of mortgage-backed securities will differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties.
September 30, 2021 |  |  |  |  |  |
(Dollars in thousands) |  |  |  |  |  |
|  | Amortized Cost |  |  | Fair Value |
Due within one year |  | $ | 11,591 |  |  |  | 11,689 |
Due from one to five years |  |  | 10,143 |  |  |  | 10,763 |
Due from five to ten years |  |  | 136,387 |  |  |  | 139,315 |
Due after ten years |  |  | 17,959 |  |  |  | 17,833 |
Mortgage-backed securities |  |  | 222,526 |  |  |  | 223,305 |
Total |  | $ | 398,606 |  |  |  | 402,905 |
| No securities available for sale were sold during the three and nine months ended September 30, 2021. Proceeds from sales of securities available for sale during the three months ended September 30, 2020 were $29.2 million and resulted in net gains of $1.7 million. Proceeds from sales of securities available for sale during the nine months ended September 30, 2020 were $46.1 million and resulted in net gains of $2.1 million. Securities with a fair value of approximately $90.6 million and $77.3 million at September 30, 2021 and December 31, 2020, respectively, were pledged to secure public deposits and for other purposes as required by law.

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