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Investments | 6 Months Ended
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Jun. 30, 2023
Investments [Abstract] |
Investments | Note 4 – Investments The following tables show a comparison of amortized cost and fair values of investment securities at June 30, 2023 and December 31, 2022: ​
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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Estimated Fair Value
June 30, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 11,028 | ​ | $ | — | ​ | $ | 1,487 | ​ | $ | — | ​ | $ | 9,541
Residential mortgage-backed agencies | ​ | ​ | 43,224 | ​ | ​ | — | ​ | ​ | 7,357 | ​ | ​ | — | ​ | ​ | 35,867
Commercial mortgage-backed agencies | ​ | ​ | 36,897 | ​ | ​ | — | ​ | ​ | 7,763 | ​ | ​ | — | ​ | ​ | 29,134
Collateralized mortgage obligations | ​ | ​ | 24,836 | ​ | ​ | — | ​ | ​ | 4,711 | ​ | ​ | — | ​ | ​ | 20,125
Obligations of states and political subdivisions | ​ | ​ | 10,837 | ​ | ​ | 14 | ​ | ​ | 285 | ​ | ​ | — | ​ | ​ | 10,566
Corporate bonds | ​ | ​ | 1,000 | ​ | ​ | — | ​ | ​ | 253 | ​ | ​ | — | ​ | ​ | 747
Collateralized debt obligations | ​ | ​ | 18,674 | ​ | ​ | — | ​ | ​ | 4,569 | ​ | ​ | — | ​ | ​ | 14,105
Total available for sale | ​ | $ | 146,496 | ​ | $ | 14 | ​ | $ | 26,425 | ​ | $ | — | ​ | $ | 120,085
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrecognized Gains |  | Gross Unrecognized Losses |  | Estimated Fair Value |  | Allowance for Credit Losses
June 30, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 37,332 | ​ | $ | — | ​ | $ | 1,075 | ​ | $ | 36,257 | ​ | $ | —
U.S. government agencies | ​ | ​ | 67,873 | ​ | ​ | — | ​ | ​ | 12,111 | ​ | ​ | 55,762 | ​ | ​ | —
Residential mortgage-backed agencies | ​ | ​ | 26,970 | ​ | ​ | — | ​ | ​ | 3,264 | ​ | ​ | 23,706 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 21,494 | ​ | ​ | — | ​ | ​ | 5,188 | ​ | ​ | 16,306 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 55,104 | ​ | ​ | — | ​ | ​ | 10,124 | ​ | ​ | 44,980 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 21,986 | ​ | ​ | 688 | ​ | ​ | 614 | ​ | ​ | 22,060 | ​ | ​ | —
Total held to maturity | ​ | $ | 230,759 | ​ | $ | 688 | ​ | $ | 32,376 | ​ | $ | 199,071 | ​ | $ | —
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​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | OTTI in AOCL
December 31, 2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 11,044 | ​ | $ | — | ​ | $ | 1,582 | ​ | $ | 9,462 | ​ | $ | —
Residential mortgage-backed agencies | ​ | ​ | 45,052 | ​ | ​ | — | ​ | ​ | 7,651 | ​ | ​ | 37,401 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 37,393 | ​ | ​ | — | ​ | ​ | 6,661 | ​ | ​ | 30,732 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 25,828 | ​ | ​ | — | ​ | ​ | 4,784 | ​ | ​ | 21,044 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 10,848 | ​ | ​ | 4 | ​ | ​ | 360 | ​ | ​ | 10,492 | ​ | ​ | —
Corporate Bonds | ​ | ​ | 1,000 | ​ | ​ | — | ​ | ​ | 113 | ​ | ​ | 887 | ​ | ​ | —
Collateralized debt obligations | ​ | ​ | 18,664 | ​ | ​ | — | ​ | ​ | 2,793 | ​ | ​ | 15,871 | ​ | ​ | (1,695)
Total available for sale | ​ | $ | 149,829 | ​ | $ | 4 | ​ | $ | 23,944 | ​ | $ | 125,889 | ​ | $ | (1,695)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrecognized Gains |  | Gross Unrecognized Losses |  | Fair Value |  | OTTI in AOCL
December 31, 2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 37,204 | ​ | $ | — | ​ | $ | 1,593 | ​ | $ | 35,611 | ​ | $ | —
U.S. government agencies | ​ | ​ | 67,734 | ​ | ​ | — | ​ | ​ | 13,261 | ​ | ​ | 54,473 | ​ | ​ | —
Residential mortgage-backed agencies | ​ | ​ | 28,624 | ​ | ​ | 1 | ​ | ​ | 3,503 | ​ | ​ | 25,122 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 22,389 | ​ | ​ | — | ​ | ​ | 4,568 | ​ | ​ | 17,821 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 57,085 | ​ | ​ | — | ​ | ​ | 10,001 | ​ | ​ | 47,084 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 22,623 | ​ | ​ | 946 | ​ | ​ | 600 | ​ | ​ | 22,969 | ​ | ​ | —
Total held to maturity | ​ | $ | 235,659 | ​ | $ | 947 | ​ | $ | 33,526 | ​ | $ | 203,080 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ The Corporation reassessed the classification of certain investments and, effective February 1, 2022, transferred $139.0 million of callable agencies, obligations of state and political subdivisions, and collateralized mortgage obligations from available for sale to held to maturity securities. The transfer occurred at fair value. The related unrealized loss of $8.4 million included in other comprehensive loss remained in other comprehensive loss, to be amortized out of other comprehensive loss with an offsetting entry to interest income as a yield adjustment over the remaining term of the securities. No gain or loss was recorded at the time of transfer. ​ ​ The following table shows the Corporation’s investment securities with gross unrealized and unrecognized losses and fair values at June 30, 2023 and December 31, 2022, 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
June 30, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 9,541 | ​ | $ | 1,487 | ​ | 3
Residential mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 35,867 | ​ | ​ | 7,357 | ​ | 5
Commercial mortgage-backed agencies | ​ | ​ | 1,715 | ​ | ​ | 189 | ​ | 1 | ​ | ​ | 27,419 | ​ | ​ | 7,574 | ​ | 8
Collateralized mortgage obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 20,125 | ​ | ​ | 4,711 | ​ | 10
Obligations of states and political subdivisions | ​ | ​ | 3,853 | ​ | ​ | 196 | ​ | 3 | ​ | ​ | 3,878 | ​ | ​ | 89 | ​ | 2
Corporate Bonds | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 747 | ​ | ​ | 253 | ​ | 1
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 14,105 | ​ | ​ | 4,569 | ​ | 9
Total available for sale | ​ | $ | 5,568 | ​ | $ | 385 | ​ | 4 | ​ | $ | 111,682 | ​ | $ | 26,040 | ​ | 38
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more
(in thousands) |  | Fair Value |  | Unrecognized Losses |  | Number of Investments |  | Fair Value |  | Unrecognized Losses |  | Number of Investments
June 30, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 36,257 | ​ | $ | 1,075 | ​ | 4
U.S. government agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 55,762 | ​ | ​ | 12,111 | ​ | 9
Residential mortgage-backed agencies | ​ | ​ | 3,143 | ​ | ​ | 134 | ​ | 3 | ​ | ​ | 20,563 | ​ | ​ | 3,130 | ​ | 33
Commercial mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 16,306 | ​ | ​ | 5,188 | ​ | 2
Collateralized mortgage obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 44,980 | ​ | ​ | 10,124 | ​ | 8
Obligations of states and political subdivisions | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 2,258 | ​ | ​ | 614 | ​ | 1
Total held to maturity | ​ | $ | 3,143 | ​ | $ | 134 | ​ | 3 | ​ | $ | 176,126 | ​ | $ | 32,242 | ​ | 57
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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more
(in thousands) |  | Fair Value |  | Unrealized Losses |  | Number of Investments |  | Fair Value |  | Unrealized Losses |  | Number of Investments
December 31, 2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 4,598 | ​ | $ | 402 | ​ | 1 | ​ | $ | 4,865 | ​ | $ | 1,180 | ​ | 2
Residential mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 37,401 | ​ | ​ | 7,651 | ​ | 5
Commercial mortgage-backed agencies | ​ | ​ | 4,044 | ​ | ​ | 455 | ​ | 3 | ​ | ​ | 26,688 | ​ | ​ | 6,206 | ​ | 6
Collateralized mortgage obligations | ​ | ​ | 1,600 | ​ | ​ | 210 | ​ | 5 | ​ | ​ | 19,444 | ​ | ​ | 4,574 | ​ | 5
Obligations of states and political subdivisions | ​ | ​ | 8,906 | ​ | ​ | 360 | ​ | 7 | ​ | ​ | — | ​ | ​ | — | ​ | —
Corporate Bonds | ​ | ​ | 887 | ​ | ​ | 113 | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 15,871 | ​ | ​ | 2,793 | ​ | 9
Total available for sale | ​ | $ | 20,035 | ​ | $ | 1,540 | ​ | 17 | ​ | $ | 104,269 | ​ | $ | 22,404 | ​ | 27
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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more
(in thousands) |  | Fair Value |  | Unrecognized Losses |  | Number of Investments |  | Fair Value |  | Unrecognized Losses |  | Number of Investments
December 31, 2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 35,611 | ​ | $ | 1,593 | ​ | 4
U.S. government agencies | ​ | ​ | 38,883 | ​ | ​ | 9,617 | ​ | 7 | ​ | ​ | 15,591 | ​ | ​ | 3,644 | ​ | 2
Residential mortgage-backed agencies | ​ | ​ | 16,893 | ​ | ​ | 1,425 | ​ | 29 | ​ | ​ | 8,138 | ​ | ​ | 2,078 | ​ | 7
Commercial mortgage-backed agencies | ​ | ​ | 17,821 | ​ | ​ | 4,568 | ​ | 3 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized mortgage obligations | ​ | ​ | 47,083 | ​ | ​ | 10,001 | ​ | 8 | ​ | ​ | — | ​ | ​ | — | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 2,269 | ​ | ​ | 600 | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​ | —
Total held to maturity | ​ | $ | 122,949 | ​ | $ | 26,211 | ​ | 48 | ​ | $ | 59,340 | ​ | $ | 7,315 | ​ | 13
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ The Corporation utilizes ASC 326 to evaluate its available-for sale (“AFS”) and held-to-maturity (“HTM”) debt security portfolio for expected credit losses. For AFS debt securities in an unrealized loss position, the Corporation first assesses whether it intends to sell, or it is more likely than not that it will be required to sell, the security before recovery of its amortized cost basis. If either criteria is met, the security’s amortized cost basis is written down to fair value through income. For AFS debt securities that do not meet the aforementioned criteria, the Corporation evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an ACL is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is recognized in other comprehensive income, as a non-credit-related impairment. ​ Changes in the allowance for credit losses are recorded as a provision for (or reversal of) credit losses. Losses are charged against the allowance when management believes the uncollectibility of an AFS security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Any impairment not recorded through an allowance for credit loss is recognized in other comprehensive income as a non-credit-related impairment. ​ The Corporation has made the policy election to exclude accrued interest from the amortized cost basis of available-for-sale debt securities and report accrued interest separately in other assets in the Consolidated Balance Sheets. Available-for-sale debt securities are placed on nonaccrual status when we no longer expect to receive all contractual amounts due, which is generally at 90 days past due. Accrued interest receivable is reversed against interest income when a security is placed on nonaccrual status. Accordingly, we do not recognize an allowance for credit loss against accrued interest receivable. ​ The Corporation separately evaluates its HTM investment securities for any credit losses. The Corporation pools like securities and calculates expected credit losses through an estimate based on a security’s credit rating, which is recognized as part of the allowance for credit losses for held-to-maturity securities and is included in the balance of investment securities held to maturity on the Consolidated Balance Sheets. If the Corporation determines that a security indicates evidence of deteriorated credit quality, the security is individually evaluated and a discounted cash flow analysis is performed and compared to the amortized cost basis. ​ As of June 30, 2023, the Corporation recorded no ACL related to its AFS or HTM security portfolio. ​ The following table presents a cumulative roll-forward of the amount of non-cash credit-related impairment charges related to credit losses that have been previously recognized in earnings for the trust preferred securities held in the collateralized debt obligation (“CDO”) portfolio during the six and three month periods ended June 30, 2023 and 2022 that the Corporation does not intend to sell: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended
​ | ​ | June 30,
(in thousands) |  | 2023 |  | 2022
Balance of credit-related impairment at January 1 | ​ | $ | 1,841 | ​ | $ | 2,043
Reduction for increases in cash flows expected to be collected | ​ | ​ | (101) | ​ | ​ | (101)
Balance of credit-related impairment at June 30 | ​ | $ | 1,740 | ​ | $ | 1,942
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | June 30,
(in thousands) | ​ | 2023 | ​ | 2022
Balance of credit-related impairment at April 1 | ​ | $ | 1,791 | ​ | $ | 1,993
Reduction for increases in cash flows expected to be collected | ​ | ​ | (51) | ​ | ​ | (51)
Balance of credit-related impairment at June 30 | ​ | $ | 1,740 | ​ | $ | 1,942
​ ​ The amortized cost and estimated fair value of securities by contractual maturity at June 30, 2023 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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​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2023
(in thousands) |  | Amortized Cost |  | Fair Value
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 340 | ​ | $ | 340
Due after one year through five years | ​ | ​ | 11,948 | ​ | ​ | 11,052
Due after five years through ten years | ​ | ​ | 1,895 | ​ | ​ | 1,631
Due after ten years | ​ | ​ | 27,356 | ​ | ​ | 21,936
​ | ​ | ​ | 41,539 | ​ | ​ | 34,959
Residential mortgage-backed agencies | ​ | ​ | 43,224 | ​ | ​ | 35,867
Commercial mortgage-backed agencies | ​ | ​ | 36,897 | ​ | ​ | 29,134
Collateralized mortgage obligations | ​ | ​ | 24,836 | ​ | ​ | 20,125
Total available for sale | ​ | $ | 146,496 | ​ | $ | 120,085
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 37,332 | ​ | $ | 36,257
Due after one year through five years | ​ | ​ | 12,500 | ​ | ​ | 11,338
Due after five years through ten years | ​ | ​ | 33,094 | ​ | ​ | 27,382
Due after ten years | ​ | ​ | 44,265 | ​ | ​ | 39,102
​ | ​ | ​ | 127,191 | ​ | ​ | 114,079
Residential mortgage-backed agencies | ​ | ​ | 26,970 | ​ | ​ | 23,706
Commercial mortgage-backed agencies | ​ | ​ | 21,494 | ​ | ​ | 16,306
Collateralized mortgage obligations | ​ | ​ | 55,104 | ​ | ​ | 44,980
Total held to maturity | ​ | $ | 230,759 | ​ | $ | 199,071
​

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