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Investments | 9 Months Ended
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Sep. 30, 2021
Investments [Abstract] |
Investments | Note 4 – Investments The following table shows a comparison of amortized cost and fair values of investment securities at September 30, 2021 and December 31, 2020: ​
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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 | ​ | $ | —
​ The following table shows the Corporation’s investment securities with gross unrealized losses and fair values at September 30, 2021 and December 31, 2020, aggregated by investment category and the length of time that individual securities have been in a continuous unrealized loss position: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 | ​ | $ | — | ​ | $ | — | ​ | —
​ Management systematically evaluates securities for impairment on a quarterly basis. Based upon application of accounting guidance for subsequent measurement in ASC Topic 320 (ASC Section 320-10-35), management assesses whether (a) the Corporation has the intent to sell a security being evaluated and (b) it is more likely than not that the Corporation will be required to sell the security prior to the anticipated recovery of any decline in fair value. If neither applies, then any decline in the fair value below the security’s cost that is considered an other-than-temporary decline is split into two components. The first component is the loss attributable to declining credit quality. Credit losses are recognized in earnings as realized losses in the period in which the impairment determination is made. The second component consists of all other losses, which are recognized in other comprehensive loss. In estimating other than temporary impairment (“OTTI”) losses, management considers (1) the length of time and the extent to which the fair value has been less than cost, (2) adverse conditions specifically related to the security, an industry, or a geographic area, (3) the historic and implied volatility of the fair value of the security, (4) changes in the rating of the security by a rating agency, (5) recoveries or additional declines in fair value subsequent to the balance sheet date, (6) failure of the issuer of the security to make scheduled interest or principal payments, and (7) the payment structure of the debt security and the likelihood of the issuer being able to make payments that increase in the future. Management also monitors cash flow projections for securities that are considered beneficial interests under the guidance of ASC Subtopic 325-40, Investments – Other – Beneficial Interests in Securitized Financial Assets, (ASC Section 325-40-35). Management believes that the valuation of certain securities is a critical accounting policy that requires significant estimates in preparation of the Corporation’s consolidated financial statements. Management utilizes an independent third party to prepare both the impairment valuations and fair value determinations for the Corporation’s collateralized debt obligation (“CDO”) portfolio consisting of pooled trust preferred securities. See Note 7 for a discussion of the methodology used by management to determine the fair values of these securities. Based upon a review of credit quality and the cash flow tests performed by the independent third party, management determined that there were no securities that had credit-related OTTI charges during the first nine months of 2021 or 2020. The Corporation believes that the investment securities that were in an unrealized loss position at September 30, 2021 do not represent other-than-temporary impairment. The Corporation does not intend to sell, nor is it anticipated that the Corporation will be required to sell, any of its impaired investment securities at a loss. The following tables present a cumulative roll-forward of the amount of non-cash OTTI charges related to credit losses that have been recognized in earnings for the trust preferred securities held in the CDO portfolio during the nine and three month periods ended September 30, 2021 and 2020 that the Corporation does not intend to sell: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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
​ The amortized cost and estimated fair value of securities by contractual maturity at September 30, 2021 are shown in the following table. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties. ​
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​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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