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Investments Securities (Tables) | 12 Months Ended
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Dec. 31, 2022
Investments Securities [Abstract] |
Unrealized Gain (Loss) on Investments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(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 | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | OTTI in AOCL
December 31, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies |  | $ | 69,602 | ​ | $ | 66 | ​ | $ | 2,499 |  | $ | 67,169 |  | $ | —
Residential mortgage-backed agencies | ​ | ​ | 49,630 | ​ | ​ | — | ​ | ​ | 969 | ​ | ​ | 48,661 | ​ | ​ | —
Commercial mortgage-backed agencies | ​ | ​ | 51,694 | ​ | ​ | 175 | ​ | ​ | 1,001 | ​ | ​ | 50,868 | ​ | ​ | —
Collateralized mortgage obligations | ​ | ​ | 93,018 | ​ | ​ | 84 | ​ | ​ | 3,025 | ​ | ​ | 90,077 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 12,439 | ​ | ​ | 371 | ​ | ​ | 6 | ​ | ​ | 12,804 | ​ | ​ | —
Collateralized debt obligations | ​ | ​ | 18,609 | ​ | ​ | 112 | ​ | ​ | 1,529 | ​ | ​ | 17,192 | ​ | ​ | (660)
Total available for sale | ​ | $ | 294,992 | ​ | $ | 808 | ​ | $ | 9,029 | ​ | $ | 286,771 | ​ | $ | (660)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amortized Cost |  | Gross Unrecognized Gains |  | Gross Unrecognized Losses |  | Fair Value |  | OTTI in AOCL
December 31, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | $ | 30,634 | ​ | $ | 649 | ​ | $ | 436 | ​ | $ | 30,847 | ​ | $ | —
Commercial mortgage-backed agencies | ​ | ​ | 5,456 | ​ | ​ | 145 | ​ | ​ | — | ​ | ​ | 5,601 | ​ | ​ | —
Obligations of states and political subdivisions | ​ | ​ | 20,169 | ​ | ​ | 8,752 | ​ | ​ | — | ​ | ​ | 28,921 | ​ | ​ | —
Total held to maturity | ​ | $ | 56,259 | ​ | $ | 9,546 | ​ | $ | 436 | ​ | $ | 65,369 | ​ | $ | —
​
Proceeds from Sales and Realized Gains and Losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2022 |  | 2021
Proceeds | ​ | $ | 1,023 | ​ | $ | 13,687
Gross realized gains | ​ | ​ | 3 | ​ | ​ | 370
Gross realized losses | ​ | ​ | — | ​ | ​ | 216
​
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, 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 |  | Unrealized Losses |  | Number of Investments |  | Fair Value |  | Unrealized 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
​ ​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for Sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agencies | ​ | $ | 23,577 | ​ | $ | 122 | ​ | 3 | ​ | $ | 33,972 | ​ | $ | 2,377 | ​ | 6
Residential mortgage-backed agencies | ​ | ​ | 29,507 | ​ | ​ | 257 | ​ | 3 | ​ | ​ | 19,154 | ​ | ​ | 712 | ​ | 2
Commercial mortgage-backed agencies | ​ | ​ | 32,177 | ​ | ​ | 787 | ​ | 4 | ​ | ​ | 5,211 | ​ | ​ | 214 | ​ | 1
Collateralized mortgage obligations | ​ | ​ | 24,322 | ​ | ​ | 649 | ​ | 5 | ​ | ​ | 43,076 | ​ | ​ | 2,376 | ​ | 5
Obligations of states and political subdivisions | ​ | ​ | 3,046 | ​ | ​ | 6 | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​ | —
Collateralized debt obligations | ​ | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | 10,468 | ​ | ​ | 1,529 | ​ | 5
Total available for sale | ​ | $ | 112,629 | ​ | $ | 1,821 | ​ | 16 | ​ | $ | 111,881 | ​ | $ | 7,208 | ​ | 19
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential mortgage-backed agencies | ​ | $ | 7,395 | ​ | $ | 291 | ​ | 6 | ​ | $ | 2,782 | ​ | $ | 145 | ​ | 1
Total held to maturity | ​ | $ | 7,395 | ​ | $ | 291 | ​ | 6 | ​ | $ | 2,782 | ​ | $ | 145 | ​ | 1
​
Non-Cash OTTI Credit Losses Recognized in Earnings | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2022 |  | 2021
Balance of credit-related OTTI at January 1 | ​ | $ | 2,043 | ​ | $ | 2,244
Reduction for increases in cash flows expected to be collected | ​ | ​ | (202) | ​ | ​ | (201)
Balance of credit-related OTTI at December 31 | ​ | $ | 1,841 | ​ | $ | 2,043
​
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 | ​ | $ | 340 | ​ | $ | 340
Due after one year through five years | ​ | ​ | 11,964 | ​ | ​ | 11,018
Due after five years through ten years | ​ | ​ | 1,895 | ​ | ​ | 1,778
Due after ten years | ​ | ​ | 27,357 | ​ | ​ | 23,576
​ | ​ | ​ | 41,556 | ​ | ​ | 36,712
Residential mortgage-backed agencies | ​ | ​ | 45,052 | ​ | ​ | 37,401
Commercial mortgage-backed agencies | ​ | ​ | 37,393 | ​ | ​ | 30,732
Collateralized mortgage obligations | ​ | ​ | 25,828 | ​ | ​ | 21,044
Total available for sale | ​ | $ | 149,829 | ​ | $ | 125,889
Held to Maturity: | ​ | ​ | ​ | ​ | ​ | ​
Due after one year through five years | ​ | $ | 49,704 | ​ | $ | 46,857
Due after five years through ten years | ​ | $ | 33,022 | ​ | $ | 26,825
Due after ten years | ​ | $ | 44,835 | ​ | $ | 39,371
​ | ​ | ​ | 127,561 | ​ | ​ | 113,053
Residential mortgage-backed agencies | ​ | ​ | 28,624 | ​ | ​ | 25,122
Commercial mortgage-backed agencies | ​ | ​ | 22,389 | ​ | ​ | 17,821
Collateralized mortgage obligations | ​ | ​ | 57,085 | ​ | ​ | 47,084
Total held to maturity | ​ | $ | 235,659 | ​ | $ | 203,080
​

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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=123581744&loc=d3e27340-111563 + Details
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