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v3.23.1

Securities (Tables) | 3 Months Ended
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Mar. 31, 2023
Securities [Abstract] |
Schedule of Available-for-sale Securities Reconciliation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
Available-for-sale: | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value
U.S. Treasury | ​ | $ | 241,002 | ​ | $ | — | ​ | $ | (14,496) | ​ | $ | 226,506
U.S. Government-sponsored enterprises (GSEs) | ​ | ​ | 63,723 | ​ | ​ | 1,783 | ​ | ​ | (28) | ​ | ​ | 65,478
Municipal securities | ​ |  | 19,022 | ​ |  | 94 | ​ |  | (412) | ​ |  | 18,704
Other debt securities | ​ |  | 32,952 | ​ |  | — | ​ |  | (2,396) | ​ |  | 30,556
Mortgage-backed securities (GSEs) | ​ |  | 240,767 | ​ |  | 34 | ​ |  | (21,627) | ​ |  | 219,174
Total | ​ | $ | 597,466 | ​ | $ | 1,911 | ​ | $ | (38,959) | ​ | $ | 560,418
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
Available-for-sale: | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value
U.S. Treasury | ​ | $ | 241,506 | ​ | $ | — | ​ | $ | (17,853) | ​ | $ | 223,653
U.S. Government-sponsored enterprises (GSEs) | ​ | ​ | 1,593 | ​ | ​ | — | ​ | ​ | (18) | ​ | ​ | 1,575
Municipal securities | ​ |  | 19,210 | ​ |  | 17 | ​ |  | (616) | ​ |  | 18,611
Other debt securities | ​ |  | 32,959 | ​ |  | — | ​ |  | (2,408) | ​ |  | 30,551
Mortgage-backed securities (GSEs) | ​ |  | 233,948 | ​ |  | 6 | ​ |  | (24,451) | ​ |  | 209,503
Total | ​ | $ | 529,216 | ​ | $ | 23 | ​ | $ | (45,346) | ​ | $ | 483,893
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
Held-to-maturity: | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value
U.S. Treasury | ​ | $ | 150,295 | ​ | $ | — | ​ | $ | (5,613) | ​ | $ | 144,682
U.S. Government-sponsored enterprises (GSEs) | ​ | ​ | 50,539 | ​ | ​ | — | ​ | ​ | (8,037) | ​ | ​ | 42,502
Municipal securities | ​ |  | 53,694 | ​ |  | — | ​ |  | (7,550) | ​ |  | 46,144
Mortgage-backed securities (GSEs) | ​ |  | 31,421 | ​ |  | — | ​ |  | (4,136) | ​ |  | 27,285
Total | ​ | $ | 285,949 | ​ | $ | — | ​ | $ | (25,336) | ​ | $ | 260,613
​
Schedule of Held-to-maturity Securities Reconciliation | ​ ​
Investments Classified by Contractual Maturity Date | The amortized cost and estimated fair value of securities at March 31, 2023 by contractual maturity for non-mortgage backed securities are shown below (in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ |  | Amortized |  | Fair
Available-for-sale: | ​ | Cost | ​ | Value
Due in one year or less | ​ | $ | 110,981 | ​ | $ | 108,256
Due from one year to five years | ​ |  | 111,416 | ​ |  | 103,219
Due from five years to ten years | ​ |  | 123,988 | ​ |  | 119,631
Due after ten years | ​ |  | 10,314 | ​ |  | 10,138
​ | ​ |  | 356,699 | ​ |  | 341,244
Mortgage-backed securities | ​ |  | 240,767 | ​ |  | 219,174
Total | ​ | $ | 597,466 | ​ | $ | 560,418
​ | ​ | ​ | ​ | ​ | ​ | ​
Held-to-maturity: | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 99,946 | ​ | $ | 97,148
Due from one year to five years | ​ |  | 50,297 | ​ |  | 48,916
Due from five years to ten years | ​ |  | 37,828 | ​ |  | 33,309
Due after ten years | ​ |  | 65,867 | ​ |  | 56,747
​ | ​ |  | 253,938 | ​ |  | 236,120
Mortgage-backed securities | ​ |  | 30,838 | ​ |  | 27,052
Total | ​ | $ | 284,776 | ​ | $ | 263,172
​
Schedule of Unrealized Loss on Investments | The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities AFS and HTM have been in a continuous unrealized loss position (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ | ​ | Less than 12 Months | ​ | 12 Months or Greater | ​ | Total
​ |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number
​ | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of
Available-for-sale: | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities
U.S. Treasury | ​ | $ | 3,955 | ​ | $ | (34) | ​ | 1 | ​ | $ | 222,553 | ​ | $ | (14,462) | ​ | 19 | ​ | $ | 226,508 | ​ | $ | (14,496) | ​ | 20
U.S. Government-sponsored enterprises (GSEs) | ​ | ​ | 8,225 | ​ | ​ | (24) | ​ | 3 | ​ | ​ | 286 | ​ | ​ | (4) | ​ | 2 | ​ | ​ | 8,511 | ​ | ​ | (28) | ​ | 5
Municipal securities | ​ |  | 5,455 | ​ |  | (96) | ​ | 6 | ​ |  | 8,086 | ​ |  | (316) | ​ | 15 | ​ |  | 13,541 | ​ |  | (412) | ​ | 21
Other debt securities | ​ |  | 13,895 | ​ |  | (989) | ​ | 9 | ​ |  | 16,660 | ​ |  | (1,407) | ​ | 17 | ​ |  | 30,555 | ​ |  | (2,396) | ​ | 26
Mortgage-backed securities (GSEs) | ​ |  | 51,558 | ​ |  | (1,086) | ​ | 44 | ​ |  | 164,308 | ​ |  | (20,541) | ​ | 71 | ​ |  | 215,866 | ​ |  | (21,627) | ​ | 115
Total | ​ | $ | 83,088 | ​ | $ | (2,229) | ​ | 63 | ​ | $ | 411,893 | ​ | $ | (36,730) | ​ | 124 | ​ | $ | 494,981 | ​ | $ | (38,959) | ​ | 187
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ | ​ | Less than 12 Months | ​ | 12 Months or Greater | ​ | Total
​ |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number
​ | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of
Held-to-maturity: | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities
U.S. Treasury | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 146,064 | ​ | $ | (4,178) | ​ | 4 | ​ | $ | 146,064 | ​ | $ | (4,178) | ​ | 4
U.S. Government-sponsored enterprises (GSEs) | ​ |  | — | ​ |  | — | ​ | — | ​ |  | 43,257 | ​ |  | (6,983) | ​ | 13 | ​ |  | 43,257 | ​ |  | (6,983) | ​ | 13
Municipal securities | ​ |  | 250 | ​ |  | (20) | ​ | 1 | ​ |  | 46,549 | ​ |  | (6,637) | ​ | 34 | ​ |  | 46,799 | ​ |  | (6,657) | ​ | 35
Mortgage-backed securities (GSEs) | ​ |  | — | ​ |  | — | ​ | — | ​ |  | 27,052 | ​ |  | (3,786) | ​ | 5 | ​ |  | 27,052 | ​ |  | (3,786) | ​ | 5
Total | ​ | $ | 250 | ​ | $ | (20) | ​ | 1 | ​ | $ | 262,922 | ​ | $ | (21,584) | ​ | 56 | ​ | $ | 263,172 | ​ | $ | (21,604) | ​ | 57
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | Less than 12 Months | ​ | 12 Months or Greater | ​ | Total
​ |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number
​ | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of
Available-for-sale: | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities
U.S. Treasury | ​ | $ | 134,414 | ​ | $ | (7,610) | ​ | 9 | ​ | $ | 89,239 | ​ | $ | (10,243) | ​ | 11 | ​ | $ | 223,653 | ​ | $ | (17,853) | ​ | 20
U.S. Government-sponsored enterprises (GSEs) | ​ | ​ | 1,266 | ​ | ​ | (14) | ​ | 1 | ​ | ​ | 309 | ​ | ​ | (4) | ​ | 2 | ​ | ​ | 1,575 | ​ | ​ | (18) | ​ | 3
Municipal securities | ​ |  | 13,146 | ​ |  | (616) | ​ | 20 | ​ |  | — | ​ |  | — | ​ | — | ​ |  | 13,146 | ​ |  | (616) | ​ | 20
Other debt securities | ​ |  | 25,044 | ​ |  | (1,866) | ​ | 20 | ​ |  | 5,506 | ​ |  | (542) | ​ | 6 | ​ |  | 30,550 | ​ |  | (2,408) | ​ | 26
Mortgage-backed securities (GSEs) | ​ |  | 111,598 | ​ |  | (8,968) | ​ | 86 | ​ |  | 96,285 | ​ |  | (15,483) | ​ | 28 | ​ |  | 207,883 | ​ |  | (24,451) | ​ | 114
Total | ​ | $ | 285,468 | ​ | $ | (19,074) | ​ | 136 | ​ | $ | 191,339 | ​ | $ | (26,272) | ​ | 47 | ​ | $ | 476,807 | ​ | $ | (45,346) | ​ | 183
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | Less than 12 Months | ​ | 12 Months or Greater | ​ | Total
​ |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number |  | ​ | ​ |  | Gross | ​ | Number
​ | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of | ​ | Fair | ​ | Unrealized | ​ | of
Held-to-maturity: | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities | ​ | Value | ​ | Losses | ​ | Securities
U.S. Treasury | ​ | $ | 144,683 | ​ | $ | (5,613) | ​ | 4 | ​ | $ | — | ​ | $ | — | ​ | — | ​ | $ | 144,683 | ​ | $ | (5,613) | ​ | 4
U.S. Government-sponsored enterprises (GSEs) | ​ | $ | 13,048 | ​ | $ | (2,503) | ​ | 3 | ​ | $ | 29,451 | ​ | $ | (5,534) | ​ | 10 | ​ | $ | 42,499 | ​ | $ | (8,037) | ​ | 13
Municipal securities | ​ |  | 40,770 | ​ |  | (6,387) | ​ | 28 | ​ |  | 5,375 | ​ |  | (1,163) | ​ | 7 | ​ |  | 46,145 | ​ |  | (7,550) | ​ | 35
Mortgage-backed securities (GSEs) | ​ |  | — | ​ |  | — | ​ | — | ​ |  | 27,285 | ​ |  | (4,136) | ​ | 5 | ​ |  | 27,285 | ​ |  | (4,136) | ​ | 5
Total | ​ | $ | 198,501 | ​ | $ | (14,503) | ​ | 35 | ​ | $ | 62,111 | ​ | $ | (10,833) | ​ | 22 | ​ | $ | 260,612 | ​ | $ | (25,336) | ​ | 57
​
Schedule of Other Investments | ​ The following is the amortized cost and carrying value of other investments (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ |  | 2023 |  | 2022
Federal Reserve Bank stock | ​ | $ | 9,792 |  | $ | 9,783
Federal Home Loan Bank stock | ​ |  | 3,917 |  | ​ | 5,397
First National Bankers Bank stock | ​ |  | 350 |  | ​ | 350
Total | ​ | $ | 14,059 | ​ | $ | 15,530

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