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Investment Securities (Tables) | 3 Months Ended
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Mar. 31, 2021
Investment Securities |
Schedule of amortized cost and fair value of debt securities available-for-sale | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Total | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortized | ​ | Gross Unrealized | ​ | Fair
(in thousands) |  | Cost |  | Gains |  | Losses |  | Value
March 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Treasury | ​ | $ | 3,018 | ​ | $ | 23 | ​ | $ | — | ​ | $ | 3,041
U.S. government and federal agency obligations | ​ |  | 20,161 | ​ |  | 76 | ​ |  | (408) | ​ |  | 19,829
U.S. government-sponsored enterprises | ​ |  | 22,497 | ​ |  | 238 | ​ |  | (184) | ​ |  | 22,551
Obligations of states and political subdivisions | ​ |  | 70,324 | ​ |  | 961 | ​ |  | (467) | ​ |  | 70,818
Mortgage-backed securities | ​ | ​ | 108,106 | ​ | ​ | 1,586 | ​ | ​ | (1,048) | ​ | ​ | 108,644
Other debt securities (a) | ​ |  | 11,825 | ​ |  | 209 | ​ |  | (11) | ​ |  | 12,023
Bank issued trust preferred securities (a) | ​ |  | 1,486 | ​ |  | — | ​ |  | (250) | ​ |  | 1,236
Total available-for-sale securities | ​ | $ | 237,417 | ​ | $ | 3,093 | ​ | $ | (2,368) | ​ | $ | 238,142
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2020 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. Treasury | ​ | $ | 2,772 | ​ | $ | 26 | ​ | $ | — | ​ | $ | 2,798
U.S. government and federal agency obligations | ​ |  | 11,732 | ​ |  | 197 | ​ |  | — | ​ |  | 11,929
U.S. government-sponsored enterprises | ​ |  | 22,495 | ​ |  | 379 | ​ |  | — | ​ |  | 22,874
Obligations of states and political subdivisions | ​ |  | 56,943 | ​ |  | 1,801 | ​ |  | — | ​ |  | 58,744
Mortgage-backed securities | ​ | ​ | 88,357 | ​ | ​ | 1,809 | ​ | ​ | (54) | ​ |  | 90,112
Other debt securities (a) | ​ |  | 10,000 | ​ |  | 358 | ​ |  | (14) | ​ |  | 10,344
Bank issued trust preferred securities (a) | ​ |  | 1,486 | ​ |  | — | ​ |  | (257) | ​ |  | 1,229
Total available-for-sale securities | ​ | $ | 193,785 | ​ | $ | 4,570 | ​ | $ | (325) | ​ | $ | 198,030
(a) Certain hybrid instruments possessing characteristics typically associated with debt obligations.
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 | ​ | $ | 4,975 | ​ | $ | 5,011
Due after one year through five years | ​ |  | 18,245 | ​ |  | 18,456
Due after five years through ten years | ​ |  | 35,184 | ​ |  | 35,589
Due after ten years | ​ |  | 70,907 | ​ |  | 70,442
Total | ​ |  | 129,311 | ​ |  | 129,498
Mortgage-backed securities | ​ |  | 108,106 | ​ |  | 108,644
Total available-for-sale securities | ​ | $ | 237,417 | ​ | $ | 238,142
Schedule of Other securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, |  | December 31, | ​
(in thousands) |  | 2021 |  | 2020 | ​
Other securities: |  | ​ |  |  | ​ |  | ​
FHLB stock | ​ | $ | 5,992 | ​ | $ | 6,170 | ​
MIB stock | ​ |  | 151 | ​ |  | 151 | ​
Equity securities with readily determinable fair values | ​ |  | 45 | ​ |  | 32 | ​
Total other investment securities | ​ | $ | 6,188 | ​ | $ | 6,353 | ​
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 March 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Treasury | ​ | $ | 1,022 | ​ | $ | — | ​ | $ | 250 | ​ | $ | — | ​ | $ | 1,272 | ​ | $ | —
U.S. government and federal agency obligations | ​ | ​ | 14,447 | ​ | ​ | (408) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 14,447 | ​ | ​ | (408)
U.S. government-sponsored enterprises | ​ |  | 5,816 | ​ |  | (184) | ​ |  | — | ​ |  | — | ​ |  | 5,816 | ​ |  | (184)
Obligations of states and political subdivisions | ​ |  | 22,580 | ​ |  | (467) | ​ |  | — | ​ |  | — | ​ |  | 22,580 | ​ |  | (467)
Mortgage-backed securities | ​ | ​ | 46,969 | ​ | ​ | (1,048) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 46,969 | ​ | ​ | (1,048)
Other debt securities | ​ | ​ | 2,989 | ​ | ​ | (11) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,989 | ​ | ​ | (11)
Bank issued trust preferred securities | ​ |  | — | ​ |  | — | ​ |  | 1,236 | ​ |  | (250) | ​ |  | 1,236 | ​ |  | (250)
Total | ​ | $ | 93,823 | ​ | $ | (2,118) | ​ | $ | 1,486 | ​ | $ | (250) | ​ | $ | 95,309 | ​ | $ | (2,368)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
At December 31, 2020 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. Treasury | ​ | $ | 1,015 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 1,015 | ​ | $ | —
Mortgage-backed securities | ​ | ​ | 7,494 | ​ | ​ | (54) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 7,494 | ​ | ​ | (54)
Other debt securities | ​ | ​ | 2,987 | ​ | ​ | (14) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,987 | ​ | ​ | (14)
Bank issued trust preferred securities | ​ |  | — | ​ |  | — | ​ |  | 1,229 | ​ |  | (257) | ​ |  | 1,229 | ​ | ​ | (257)
Total | ​ | $ | 11,496 | ​ | $ | (68) | ​ | $ | 1,229 | ​ | $ | (257) | ​ | $ | 12,725 | ​ | $ | (325)
Schedule of components of investment securities gains and losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​
(in thousands) |  | 2021 |  | 2020 |
Investment securities gains (losses), net |  | ​ |  |  | ​ |  | ​
Available for sale securities: |  | ​ |  |  | ​ |  | ​
Gross realized gains | ​ | $ | 2 | ​ | $ | — | ​
Gross realized losses | ​ |  | — | ​ |  | — | ​
Other-than-temporary impairment recognized | ​ |  | — | ​ |  | — | ​
Other investment securities: | ​ |  |  | ​ |  |  | ​
Fair value adjustments, net | ​ |  | 12 | ​ |  | (1) | ​
Investment securities gains (losses), net | ​ | $ | 14 | ​ | $ | (1) | ​

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