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Investment Securities (Tables) | 6 Months Ended
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Jun. 30, 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
June 30, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Treasury | ​ | $ | 3,015 | ​ | $ | 19 | ​ | $ | — | ​ | $ | 3,034
U.S. government and federal agency obligations | ​ |  | 2,035 | ​ |  | 33 | ​ |  | — | ​ |  | 2,068
U.S. government-sponsored enterprises | ​ |  | 19,330 | ​ |  | 261 | ​ |  | (96) | ​ |  | 19,495
Obligations of states and political subdivisions | ​ |  | 104,777 | ​ |  | 1,652 | ​ |  | (184) | ​ |  | 106,245
Mortgage-backed securities | ​ | ​ | 133,607 | ​ | ​ | 1,665 | ​ | ​ | (634) | ​ | ​ | 134,638
Other debt securities (a) | ​ |  | 8,825 | ​ |  | 464 | ​ |  | — | ​ |  | 9,289
Bank issued trust preferred securities (a) | ​ |  | 1,486 | ​ |  | — | ​ |  | (242) | ​ |  | 1,244
Total available-for-sale securities | ​ | $ | 273,075 | ​ | $ | 4,094 | ​ | $ | (1,156) | ​ | $ | 276,013
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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 | ​ | $ | 4,827 | ​ | $ | 4,850
Due after one year through five years | ​ |  | 14,407 | ​ |  | 14,619
Due after five years through ten years | ​ |  | 34,713 | ​ |  | 35,556
Due after ten years | ​ |  | 85,521 | ​ |  | 86,350
Total | ​ |  | 139,468 | ​ |  | 141,375
Mortgage-backed securities | ​ |  | 133,607 | ​ |  | 134,638
Total available-for-sale securities | ​ | $ | 273,075 | ​ | $ | 276,013
Schedule of Other securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31, | ​
(in thousands) |  | 2021 |  | 2020 | ​
Other securities: |  | ​ |  |  | ​ |  | ​
FHLB stock | ​ | $ | 5,813 | ​ | $ | 6,170 | ​
MIB stock | ​ |  | 151 | ​ |  | 151 | ​
Equity securities with readily determinable fair values | ​ |  | 45 | ​ |  | 32 | ​
Total other investment securities | ​ | $ | 6,009 | ​ | $ | 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 June 30, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. Treasury | ​ | $ | 1,018 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 1,018 | ​ | $ | —
U.S. government-sponsored enterprises | ​ |  | 4,904 | ​ |  | (96) | ​ |  | — | ​ |  | — | ​ |  | 4,904 | ​ |  | (96)
Obligations of states and political subdivisions | ​ |  | 24,850 | ​ |  | (184) | ​ |  | — | ​ |  | — | ​ |  | 24,850 | ​ |  | (184)
Mortgage-backed securities | ​ | ​ | 54,708 | ​ | ​ | (634) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 54,708 | ​ | ​ | (634)
Bank issued trust preferred securities | ​ |  | — | ​ |  | — | ​ |  | 1,244 | ​ |  | (242) | ​ |  | 1,244 | ​ |  | (242)
Total | ​ | $ | 85,480 | ​ | $ | (914) | ​ | $ | 1,244 | ​ | $ | (242) | ​ | $ | 86,724 | ​ | $ | (1,156)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(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)
* Amounts less than $1,000 are not reported
Schedule of components of investment securities gains and losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30, | ​
(in thousands) |  | 2021 |  | 2020 |  | 2021 |  | 2020 | ​
Investment securities gains, net |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  | ​
Available-for-sale securities: |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  | ​
Gross realized gains | ​ | $ | — | ​ | $ | 6 | ​ | $ | 2 | ​ | $ | 6 | ​
Gross realized losses | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Other-than-temporary impairment recognized | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Other investment securities: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Fair value adjustments, net | ​ |  | — | ​ |  | 1 | ​ |  | 13 | ​ |  | — | ​
Investment securities gains, net | ​ | $ | — | ​ | $ | 7 | ​ | $ | 15 | ​ | $ | 6 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 + Details
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- Definition Tabular disclosure of the investment holdings which are represented by other than securities (for example, commodities). The investment holdings, other than securities investments table lists the long positions of non-security investments held by entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 5D -Subparagraph (SX 210.12-13D) -URI http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010 + Details
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