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Investments (Tables) | 9 Months Ended
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Sep. 30, 2021
Investments [Abstract] |
Unrealized Gain (Loss) on Investments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | OTTI in AOCL
September 30, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 55,527 | ​ | $ | 235 | ​ | $ | 2,028 | ​ | $ | 53,734 | ​ | $ | —
Residential mortgage-backed agencies | ​ | ​ | 30,936 | ​ | ​ | 21 | ​ | ​ | 603 | ​ | ​ | 30,354 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 55,980 | ​ | ​ | 224 | ​ | ​ | 695 | ​ | ​ | 55,509 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 70,766 | ​ | ​ | 104 | ​ | ​ | 1,791 | ​ | ​ | 69,079 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 9,402 | ​ | ​ | 394 | ​ | ​ | — | ​ | ​ | 9,796 | ​ | ​ | —
Collateralized debt obligations | ​ | ​ | 18,586 | ​ | ​ | 95 | ​ | ​ | 1,589 | ​ | ​ | 17,092 | ​ | ​ | (715)
Total available for sale | ​ | $ | 241,197 | ​ | $ | 1,073 | ​ | $ | 6,706 | ​ | $ | 235,564 | ​ | $ | (715)
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | $ | 32,113 | ​ | $ | 882 | ​ | $ | 394 | ​ | $ | 32,601 | ​ | $ | —
Commercial mortgage-backed agencies | ​ | ​ | 9,697 | ​ | ​ | 335 | ​ | ​ | — | ​ | ​ | 10,032 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 20,169 | ​ | ​ | 8,905 | ​ | ​ | — | ​ | ​ | 29,074 | ​ | ​ | —
Total held to maturity | ​ | $ | 61,979 | ​ | $ | 10,122 | ​ | $ | 394 | ​ | $ | 71,707 | ​ | $ | —
December 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 75,856 | ​ | $ | 899 | ​ | $ | 322 | ​ | $ | 76,433 | ​ | $ | —
Residential mortgage-backed agencies | ​ | ​ | 22,999 | ​ | ​ | — | ​ | ​ | 100 | ​ | ​ | 22,899 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 32,549 | ​ | ​ | 529 | ​ | ​ | 36 | ​ | ​ | 33,042 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 70,372 | ​ | ​ | 266 | ​ | ​ | 1 | ​ | ​ | 70,637 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 10,144 | ​ | ​ | 470 | ​ | ​ | — | ​ | ​ | 10,614 | ​ | ​ | —
Collateralized debt obligations | ​ | ​ | 18,544 | ​ | ​ | — | ​ | ​ | 5,284 | ​ | ​ | 13,260 | ​ | ​ | (3,839)
Total available for sale | ​ | $ | 230,464 | ​ | $ | 2,164 | ​ | $ | 5,743 | ​ | $ | 226,885 | ​ | $ | (3,839)
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | $ | 34,597 | ​ | $ | 1,173 | ​ | $ | 38 | ​ | $ | 35,732 | ​ | $ | —
Commercial mortgage-backed agencies | ​ | ​ | 11,716 | ​ | ​ | 587 | ​ | ​ | — | ​ | ​ | 12,303 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 1,348 | ​ | ​ | 58 | ​ | ​ | — | ​ | ​ | 1,406 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 20,602 | ​ | ​ | 7,569 | ​ | ​ | — | ​ | ​ | 28,171 | ​ | ​ | —
Total held to maturity | ​ | $ | 68,263 | ​ | $ | 9,387 | ​ | $ | 38 | ​ | $ | 77,612 | ​ | $ | —
Gross Unrealized Losses and Fair Values of Securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | ​ | ​ | 12 months or more | ​ | ​
(in thousands) |  | Fair Value |  | Unrealized Losses |  | Number of Investments |  | Fair Value |  | Unrealized Losses |  | Number of Investments
September 30, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 34,325 | ​ | $ | 2,028 | ​ | 6
Residential mortgage-backed agencies | ​ | ​ | 20,582 | ​ | ​ | 603 | ​ | 2 | ​ | ​ | — | ​ | ​ | — | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 41,647 | ​ | ​ | 480 | ​ | 5 | ​ | ​ | 7,725 | ​ | ​ | 215 | ​ | 1
Collateralized mortgage obligations | ​ | ​ | 65,329 | ​ | ​ | 1,791 | ​ | 8 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 10,397 | ​ | ​ | 1,589 | ​ | 5
Total available for sale | ​ | $ | 127,558 | ​ | $ | 2,874 | ​ | 15 | ​ | $ | 52,447 | ​ | $ | 3,832 | ​ | 12
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | ​ | 8,500 | ​ | ​ | 394 | ​ | 3 | ​ | ​ | — | ​ | ​ | — | ​ | —
Total held to maturity | ​ | $ | 8,500 | ​ | $ | 394 | ​ | 3 | ​ | $ | — | ​ | $ | — | ​ | —
December 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 39,611 | ​ | $ | 322 | ​ | 7 | ​ | $ | — | ​ | $ | — | ​ | —
Residential mortgage-backed agencies | ​ | ​ | 22,899 | ​ | ​ | 100 | ​ | 2 | ​ | ​ | — | ​ | ​ | — | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 16,034 | ​ | ​ | 36 | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized mortgage obligations | ​ | ​ | 39,628 | ​ | ​ | 1 | ​ | 4 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 13,260 | ​ | ​ | 5,284 | ​ | 9
Total available for sale | ​ | $ | 118,172 | ​ | $ | 459 | ​ | 14 | ​ | $ | 13,260 | ​ | $ | 5,284 | ​ | 9
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | $ | 2,973 | ​ | $ | 38 | ​ | 1 | ​ | $ | — | ​ | $ | — | ​ | —
Total held to maturity | ​ | $ | 2,973 | ​ | $ | 38 | ​ | 1 | ​ | $ | — | ​ | $ | — | ​ | —
Non-Cash OTTI Credit Losses Recognized in Earnings | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Nine Months Ended
​ | ​ | September 30,
(in thousands) |  | 2021 |  | 2020
Balance of credit-related OTTI at January 1 | ​ | $ | 2,244 | ​ | $ | 2,446
Reduction for increases in cash flows expected to be collected | ​ | ​ | (151) | ​ | ​ | (151)
Balance of credit-related OTTI at September 30 | ​ | $ | 2,093 | ​ | $ | 2,295
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | September 30,
(in thousands) | ​ | 2021 | ​ | 2020
Balance of credit-related OTTI at July 1 | ​ | $ | 2,143 | ​ | $ | 2,345
Reduction for increases in cash flows expected to be collected | ​ | ​ | (50) | ​ | ​ | (50)
Balance of credit-related OTTI at September 30 | ​ | $ | 2,093 | ​ | $ | 2,295
​
Amortized Cost and Fair Values Classified by Contractual Maturity Date | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2021
(in thousands) |  | Amortized Cost |  | Fair Value
Contractual Maturity | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​
Due after one year through five years | ​ | $ | 4,404 | ​ | $ | 4,466
Due after five years through ten years | ​ | ​ | 10,057 | ​ | ​ | 10,198
Due after ten years | ​ | ​ | 69,054 | ​ | ​ | 65,958
​ | ​ | ​ | 83,515 | ​ | ​ | 80,622
Residential mortgage-backed agencies | ​ | ​ | 30,936 | ​ | ​ | 30,354
Commercial mortgage-backed agencies | ​ | ​ | 55,980 | ​ | ​ | 55,509
Collateralized mortgage obligations | ​ | ​ | 70,766 | ​ | ​ | 69,079
Total available for sale | ​ | $ | 241,197 | ​ | $ | 235,564
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​
Due after ten years | ​ | $ | 20,169 | ​ | $ | 29,074
Residential mortgage-backed agencies | ​ | ​ | 32,113 | ​ | ​ | 32,601
Commercial mortgage-backed agencies | ​ | ​ | 9,697 | ​ | ​ | 10,032
Collateralized mortgage obligations | ​ | ​ | — | ​ | ​ | —
Total held to maturity | ​ | $ | 61,979 | ​ | $ | 71,707

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- Definition Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27340-111563 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 + Details
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