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Investments Securities (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments [Abstract] |
Unrealized Gain (Loss) on Investments | ​
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(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Estimated Fair Value
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 7,000 | ​ | $ | — | ​ | $ | 966 | ​ | $ | — | ​ | $ | 6,034
Residential mortgage-backed agencies | ​ | ​ | 24,781 | ​ | ​ | — | ​ | ​ | 4,218 | ​ | ​ | — | ​ | ​ | 20,563
Commercial mortgage-backed agencies | ​ | ​ | 36,258 | ​ | ​ | — | ​ | ​ | 7,841 | ​ | ​ | — | ​ | ​ | 28,417
Collateralized mortgage obligations | ​ | ​ | 19,725 | ​ | ​ | — | ​ | ​ | 3,369 | ​ | ​ | — | ​ | ​ | 16,356
Obligations of states and political subdivisions | ​ | ​ | 10,486 | ​ | ​ | 15 | ​ | ​ | 189 | ​ | ​ | — | ​ | ​ | 10,312
Corporate Bonds | ​ | ​ | 1,000 | ​ | ​ | — | ​ | ​ | 222 | ​ | ​ | — | ​ | ​ | 778
Collateralized debt obligations | ​ | ​ | 18,671 | ​ | ​ | — | ​ | ​ | 3,962 | ​ | ​ | — | ​ | ​ | 14,709
Total available for sale | ​ | $ | 117,921 | ​ | $ | 15 | ​ | $ | 20,767 | ​ | $ | — | ​ | $ | 97,169
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrecognized Gains |  | Gross Unrecognized Losses |  | Estimated Fair Value |  | Allowance for Credit Losses
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 37,462 | ​ | $ | — | ​ | $ | 243 | ​ | $ | 37,219 | ​ | $ | —
U.S. government agencies | ​ | ​ | 68,014 | ​ | ​ | — | ​ | ​ | 10,985 | ​ | ​ | 57,029 | ​ | ​ | —
Residential mortgage-backed agencies | ​ | ​ | 29,588 | ​ | ​ | 42 | ​ | ​ | 2,913 | ​ | ​ | 26,717 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 21,413 | ​ | ​ | — | ​ | ​ | 5,361 | ​ | ​ | 16,052 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 53,261 | ​ | ​ | — | ​ | ​ | 9,973 | ​ | ​ | 43,288 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 4,604 | ​ | ​ | 177 | ​ | ​ | 671 | ​ | ​ | 4,110 | ​ | ​ | 45
Total held to maturity | ​ | $ | 214,342 | ​ | $ | 219 | ​ | $ | 30,146 | ​ | $ | 184,415 | ​ | $ | 45
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
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
Total available for sale | ​ | $ | 149,829 | ​ | $ | 4 | ​ | $ | 23,944 | ​ | $ | 125,889
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrecognized Gains |  | Gross Unrecognized Losses |  | Estimated Fair Value
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
Proceeds from Sales and Realized Gains and Losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2023 |  | 2022
Proceeds | ​ | $ | 20,249 | ​ | $ | 1,023
Gross realized gains | ​ | ​ | — | ​ | ​ | 3
Gross realized losses | ​ | ​ | 4,214 | ​ | ​ | —
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
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 6,034 | ​ | $ | 966 | ​ | 2
Residential mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 20,563 | ​ | ​ | 4,218 | ​ | 3
Commercial mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 28,417 | ​ | ​ | 7,841 | ​ | 8
Collateralized mortgage obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 16,356 | ​ | ​ | 3,369 | ​ | 9
Obligations of states and political subdivisions | ​ | ​ | 1,445 | ​ | ​ | 20 | ​ | 2 | ​ | ​ | 6,668 | ​ | ​ | 169 | ​ | 3
Corporate Bonds | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 778 | ​ | ​ | 222 | ​ | 1
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 14,709 | ​ | ​ | 3,962 | ​ | 9
Total available for sale | ​ | $ | 1,445 | ​ | $ | 20 | ​ | 2 | ​ | $ | 93,525 | ​ | $ | 20,747 | ​ | 35
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 37,219 | ​ | $ | 243 | ​ | 4
U.S. government agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 57,029 | ​ | ​ | 10,985 | ​ | 9
Residential mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 22,613 | ​ | ​ | 2,913 | ​ | 35
Commercial mortgage-backed agencies | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 16,052 | ​ | ​ | 5,361 | ​ | 2
Collateralized mortgage obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 43,288 | ​ | ​ | 9,973 | ​ | 8
Obligations of states and political subdivisions | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 2,205 | ​ | ​ | 671 | ​ | 1
Total held to maturity | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 178,406 | ​ | $ | 30,146 | ​ | 59
​ ​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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
​
Amortized Cost and Fair Values Classified by Contractual Maturity Date | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Fair Value
Contractual Maturity | ​ | ​ | ​ | ​ | ​ | ​
Available for sale: | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 2,670 | ​ | $ | 2,640
Due after one year through five years | ​ | ​ | 5,250 | ​ | ​ | 4,952
Due after five years through ten years | ​ | ​ | 2,410 | ​ | ​ | 2,168
Due after ten years | ​ | ​ | 26,827 | ​ | ​ | 22,073
​ | ​ | ​ | 37,157 | ​ | ​ | 31,833
Residential mortgage-backed agencies | ​ | ​ | 24,781 | ​ | ​ | 20,563
Commercial mortgage-backed agencies | ​ | ​ | 36,258 | ​ | ​ | 28,417
Collateralized mortgage obligations | ​ | ​ | 19,725 | ​ | ​ | 16,356
Total available for sale | ​ | $ | 117,921 | ​ | $ | 97,169
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 37,462 | ​ | $ | 37,219
Due after one year through five years | ​ | ​ | 12,500 | ​ | ​ | 11,706
Due after five years through ten years | ​ | ​ | 40,456 | ​ | ​ | 34,495
Due after ten years | ​ | ​ | 19,662 | ​ | ​ | 14,938
​ | ​ | ​ | 110,080 | ​ | ​ | 98,358
Residential mortgage-backed agencies | ​ | ​ | 29,588 | ​ | ​ | 26,717
Commercial mortgage-backed agencies | ​ | ​ | 21,413 | ​ | ​ | 16,052
Collateralized mortgage obligations | ​ | ​ | 53,261 | ​ | ​ | 43,288
Total held to maturity | ​ | $ | 214,342 | ​ | $ | 184,415

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