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Loans and Allowance for Loan Losses (Tables) | 3 Months Ended
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Mar. 31, 2023
Loans and Allowance for Credit Losses on Loans |
Schedule of total loans outstanding by portfolio segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, |  | December 31,
(dollars in thousands) |  | 2023 |  | 2022
Commercial | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 553,578 | ​ | $ | 583,876
Real estate construction | ​ |  | 108,776 | ​ |  | 97,810
Commercial real estate | ​ |  | 934,324 | ​ |  | 881,670
Total commercial | ​ |  | 1,596,678 | ​ |  | 1,563,356
Consumer | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 698,002 | ​ |  | 679,551
Residential real estate junior lien | ​ |  | 152,281 | ​ |  | 150,479
Other revolving and installment | ​ |  | 39,664 | ​ |  | 50,608
Total consumer | ​ |  | 889,947 | ​ |  | 880,638
Total loans | ​ | $ | 2,486,625 | ​ | $ | 2,443,994
​
Schedule of past due aging analysis of the loan portfolio | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 90 Days | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Accruing | ​ | 30 - 89 Days | ​ | or More | ​ | ​ | ​ | ​ | Total
(dollars in thousands) |  | Current |  | Past Due |  | Past Due |  | Nonaccrual |  | Loans
Commercial |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial and industrial | ​ | $ | 552,921 | ​ | $ | 300 | ​ | $ | — | ​ | $ | 357 | ​ | $ | 553,578
Real estate construction | ​ |  | 108,336 | ​ |  | — | ​ |  | — | ​ |  | 440 | ​ |  | 108,776
Commercial real estate | ​ |  | 933,266 | ​ |  | 162 | ​ |  | — | ​ |  | 896 | ​ |  | 934,324
Total commercial | ​ |  | 1,594,523 | ​ |  | 462 | ​ |  | — | ​ |  | 1,693 | ​ |  | 1,596,678
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 697,012 | ​ |  | 566 | ​ |  | — | ​ | ​ | 424 | ​ |  | 698,002
Residential real estate junior lien | ​ |  | 151,703 | ​ |  | 578 | ​ |  | — | ​ |  | — | ​ |  | 152,281
Other revolving and installment | ​ |  | 39,484 | ​ |  | 179 | ​ |  | — | ​ |  | 1 | ​ |  | 39,664
Total consumer | ​ |  | 888,199 | ​ |  | 1,323 | ​ |  | — | ​ |  | 425 | ​ |  | 889,947
Total loans | ​ | $ | 2,482,722 | ​ | $ | 1,785 | ​ | $ | — | ​ | $ | 2,118 | ​ | $ | 2,486,625
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 90 Days | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Accruing | ​ | 30 - 89 Days | ​ | or More | ​ | ​ | ​ | ​ | Total
(dollars in thousands) |  | Current |  | Past Due |  | Past Due |  | Nonaccrual |  | Loans
Commercial | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial and industrial | ​ | $ | 580,288 | ​ | $ | 2,426 | ​ | $ | — | ​ | $ | 1,162 | ​ | $ | 583,876
Real estate construction | ​ |  | 97,370 | ​ |  | — | ​ |  | — | ​ |  | 440 | ​ |  | 97,810
Commercial real estate | ​ |  | 879,830 | ​ |  | 368 | ​ |  | — | ​ |  | 1,472 | ​ |  | 881,670
Total commercial | ​ |  | 1,557,488 | ​ |  | 2,794 | ​ |  | — | ​ |  | 3,074 | ​ |  | 1,563,356
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 677,471 | ​ |  | 1,545 | ​ |  | — | ​ |  | 535 | ​ |  | 679,551
Residential real estate junior lien | ​ |  | 149,918 | ​ |  | 377 | ​ |  | — | ​ |  | 184 | ​ |  | 150,479
Other revolving and installment | ​ |  | 50,360 | ​ |  | 247 | ​ |  | — | ​ |  | 1 | ​ |  | 50,608
Total consumer | ​ |  | 877,749 | ​ |  | 2,169 | ​ |  | — | ​ |  | 720 | ​ |  | 880,638
Total loans | ​ | $ | 2,435,237 | ​ | $ | 4,963 | ​ | $ | — | ​ | $ | 3,794 | ​ | $ | 2,443,994
​
Schedule of amortized cost basis on loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, 2023
​ | ​ | Nonaccrual | ​ | ​ | ​ | ​ | 90 Days
​ | ​ | with no Allowance | ​ | ​ | ​ | ​ | or More
(dollars in thousands) | ​ | for Credit Losses | ​ | Nonaccrual | ​ | Past Due
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | — | ​ | $ | 357 | ​ | $ | —
Real estate construction | ​ | ​ | — | ​ | ​ | 440 | ​ | ​ | —
Commercial real estate | ​ | ​ | — | ​ | ​ | 896 | ​ | ​ | —
Total commercial | ​ | ​ | — | ​ | ​ | 1,693 | ​ | ​ | —
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 120 | ​ | ​ | 424 | ​ | ​ | —
Residential real estate junior lien | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other revolving and installment | ​ | ​ | — | ​ | ​ | 1 | ​ | ​ | —
Total consumer | ​ | ​ | 120 | ​ | ​ | 425 | ​ | ​ | —
Total loans | ​ | $ | 120 | ​ | $ | 2,118 | ​ | $ | —
​
Schedule of loans outstanding, by portfolio segment and risk category | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Revolving | ​ | ​ | ​
(dollars in thousands) |  | Term Loans Amortized Cost Basis by Origination Year | ​ | Loans Amortized | ​ | ​ | ​
As of March 31, 2023 | ​ | 2023 | ​ | 2022 | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | Prior | ​ | Cost Basis | ​ | Total
Commercial and industrial | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Pass | ​ | $ | 40,436 | ​ | $ | 142,529 | ​ | $ | 92,778 | ​ | $ | 88,486 | ​ | $ | 42,374 | ​ | $ | 22,866 | ​ | $ | 98,960 | ​ | $ | 528,429
Substandard | ​ | ​ | — | ​ | ​ | 1,970 | ​ | ​ | 1,033 | ​ | ​ | 6 | ​ | ​ | 440 | ​ | ​ | 749 | ​ | ​ | 20,951 | ​ | ​ | 25,149
Subtotal | ​ | ​ | 40,436 | ​ | ​ | 144,499 | ​ | ​ | 93,811 | ​ | ​ | 88,492 | ​ | ​ | 42,814 | ​ | ​ | 23,615 | ​ | ​ | 119,911 | ​ | ​ | 553,578
Real estate construction | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | — | ​ | ​ | 41,291 | ​ | ​ | 31,177 | ​ | ​ | 27,531 | ​ | ​ | 8,337 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 108,336
Substandard | ​ | ​ | — |  | ​ | — |  | ​ | — |  | ​ | 440 |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | 440
Subtotal | ​ | ​ | — | ​ | ​ | 41,291 | ​ | ​ | 31,177 | ​ | ​ | 27,971 | ​ | ​ | 8,337 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 108,776
Commercial real estate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 63,474 | ​ | ​ | 295,580 | ​ | ​ | 165,134 | ​ | ​ | 155,213 | ​ | ​ | 120,223 | ​ | ​ | 121,249 | ​ | ​ | 5,423 | ​ | ​ | 926,296
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,559 | ​ | ​ | — | ​ | ​ | 4,157 | ​ | ​ | 2,312 | ​ | ​ | — | ​ | ​ | 8,028
Subtotal | ​ | ​ | 63,474 | ​ | ​ | 295,580 | ​ | ​ | 166,693 | ​ | ​ | 155,213 | ​ | ​ | 124,380 | ​ | ​ | 123,561 | ​ | ​ | 5,423 | ​ | ​ | 934,324
Residential real estate first mortgage | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 26,898 | ​ | ​ | 194,425 | ​ | ​ | 228,747 | ​ | ​ | 116,075 | ​ | ​ | 36,246 | ​ | ​ | 94,149 | ​ | ​ | 1,293 | ​ | ​ | 697,833
Special mention | ​ | ​ | — | ​ | ​ | 61 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 61
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 108 | ​ | ​ | — | ​ | ​ | 108
Subtotal | ​ | ​ | 26,898 | ​ | ​ | 194,486 | ​ | ​ | 228,747 | ​ | ​ | 116,075 | ​ | ​ | 36,246 | ​ | ​ | 94,257 | ​ | ​ | 1,293 | ​ | ​ | 698,002
Residential real estate junior lien | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 3,005 | ​ | ​ | 12,380 | ​ | ​ | 6,864 | ​ | ​ | 5,278 | ​ | ​ | 2,136 | ​ | ​ | 5,260 | ​ | ​ | 116,948 | ​ | ​ | 151,871
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 410 | ​ | ​ | 410
Subtotal | ​ | ​ | 3,005 | ​ | ​ | 12,380 | ​ | ​ | 6,864 | ​ | ​ | 5,278 | ​ | ​ | 2,136 | ​ | ​ | 5,260 | ​ | ​ | 117,358 | ​ | ​ | 152,281
Other revolving and installment | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 1,674 | ​ | ​ | 9,968 | ​ | ​ | 1,685 | ​ | ​ | 7,278 | ​ | ​ | 3,075 | ​ | ​ | 2,768 | ​ | ​ | 13,215 | ​ | ​ | 39,663
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1 | ​ | ​ | — | ​ | ​ | 1
Subtotal | ​ | ​ | 1,674 | ​ | ​ | 9,968 | ​ | ​ | 1,685 | ​ | ​ | 7,278 | ​ | ​ | 3,075 | ​ | ​ | 2,769 | ​ | ​ | 13,215 | ​ | ​ | 39,664
Total loans | ​ | $ | 135,487 | ​ | $ | 698,204 | ​ | $ | 528,977 | ​ | $ | 400,307 | ​ | $ | 216,988 | ​ | $ | 249,462 | ​ | $ | 257,200 | ​ | $ | 2,486,625
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | ​ | ​ | ​ | Criticized | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Special | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars in thousands) |  | Pass |  | Mention |  | Substandard |  | Doubtful |  | Total
Commercial |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial and industrial | ​ | $ | 558,694 | ​ | $ | 21,969 | ​ | $ | 3,213 | ​ | $ | — | ​ | $ | 583,876
Real estate construction | ​ |  | 97,548 | ​ |  | — | ​ |  | 262 | ​ |  | — | ​ |  | 97,810
Commercial real estate | ​ |  | 873,270 | ​ |  | — | ​ |  | 8,400 | ​ |  | — | ​ |  | 881,670
Total commercial | ​ | ​ | 1,529,512 | ​ | ​ | 21,969 | ​ | ​ | 11,875 | ​ | ​ | — | ​ | ​ | 1,563,356
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 678,743 | ​ |  | 63 | ​ |  | 745 | ​ |  | — | ​ |  | 679,551
Residential real estate junior lien | ​ |  | 149,847 | ​ |  | — | ​ |  | 632 | ​ |  | — | ​ |  | 150,479
Other revolving and installment | ​ |  | 50,607 | ​ |  | — | ​ |  | 1 | ​ |  | — | ​ |  | 50,608
Total consumer | ​ |  | 879,197 | ​ |  | 63 | ​ |  | 1,378 | ​ |  | — | ​ |  | 880,638
Total loans | ​ | $ | 2,408,709 | ​ | $ | 22,032 | ​ | $ | 13,253 | ​ | $ | — | ​ | $ | 2,443,994
​
Summary of changes in allowances | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended March 31, 2023
​ | ​ | Beginning | ​ | Adoption | ​ | Provision for | ​ | Loan | ​ | Loan | ​ | Ending
(dollars in thousands) |  | Balance |  | of ASC 326 |  | Credit Losses(1) |  | Charge-offs |  | Recoveries | ​ | Balance
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 9,158 | ​ | $ | (862) | ​ | $ | (377) | ​ | $ | (175) | ​ | $ | 56 | ​ | $ | 7,800
Real estate construction | ​ | ​ | 1,446 | ​ | ​ | 2,518 | ​ | ​ | 442 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,406
Commercial real estate | ​ | ​ | 12,688 | ​ | ​ | (424) | ​ | ​ | 69 | ​ | ​ | — | ​ | ​ | 11 | ​ | ​ | 12,344
Total commercial | ​ | ​ | 23,292 | ​ | ​ | 1,232 | ​ | ​ | 134 | ​ | ​ | (175) | ​ | ​ | 67 | ​ | ​ | 24,550
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 5,769 | ​ | ​ | 2,080 | ​ | ​ | 209 | ​ | ​ | — | ​ | ​ | 2 | ​ | ​ | 8,060
Residential real estate junior lien | ​ | ​ | 1,289 | ​ | ​ | (67) | ​ | ​ | 126 | ​ | ​ | (77) | ​ | ​ | 6 | ​ | ​ | 1,277
Other revolving and installment | ​ | ​ | 528 | ​ | ​ | (104) | ​ | ​ | (117) | ​ | ​ | (5) | ​ | ​ | 12 | ​ | ​ | 314
Total consumer | ​ | ​ | 7,586 | ​ | ​ | 1,909 | ​ | ​ | 218 | ​ | ​ | (82) | ​ | ​ | 20 | ​ | ​ | 9,651
Unallocated | ​ | ​ | 268 | ​ | ​ | 716 | ​ | ​ | (83) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 901
Total | ​ | $ | 31,146 | ​ | $ | 3,857 | ​ | $ | 269 | ​ | $ | (257) | ​ | $ | 87 | ​ | $ | 35,102
(1) | The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $230 thousand related to off-balance sheet credit exposures and $51 thousand related to investment securities held-to-maturity.
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended March 31, 2022
​ | ​ | Beginning | ​ | Provision for | ​ | Loan | ​ | Loan | ​ | Ending
(dollars in thousands) |  | Balance |  | Loan Losses |  | Charge-offs |  | Recoveries |  | Balance
Commercial | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial and industrial | ​ | $ | 8,925 | ​ | $ | 771 | ​ | $ | (27) | ​ | $ | 126 | ​ | $ | 9,795
Real estate construction | ​ |  | 783 | ​ |  | 27 | ​ |  | — | ​ |  | — | ​ |  | 810
Commercial real estate | ​ |  | 12,376 | ​ |  | (441) | ​ |  | — | ​ |  | 11 | ​ |  | 11,946
Total commercial | ​ |  | 22,084 | ​ |  | 357 | ​ |  | (27) | ​ |  | 137 | ​ |  | 22,551
Consumer | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 6,532 | ​ |  | 129 | ​ |  | — | ​ |  | — | ​ |  | 6,661
Residential real estate junior lien | ​ |  | 1,295 | ​ |  | 92 | ​ |  | — | ​ | ​ | 13 | ​ |  | 1,400
Other revolving and installment | ​ |  | 481 | ​ |  | 145 | ​ |  | (18) | ​ |  | 36 | ​ |  | 644
Total consumer | ​ |  | 8,308 | ​ |  | 366 | ​ |  | (18) | ​ |  | 49 | ​ |  | 8,705
Unallocated | ​ |  | 1,180 | ​ |  | (723) | ​ |  | — | ​ |  | — | ​ |  | 457
Total | ​ | $ | 31,572 | ​ | $ | — | ​ | $ | (45) | ​ | $ | 186 | ​ | $ | 31,713
​
Schedule of summary of charge-offs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gross Charge-offs for the three months ended March 31, 2023
(dollars in thousands) | ​ | 2023 | ​ | 2022 | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | Prior | ​ | Total
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | (16) | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | (159) | ​ | $ | — | ​ | $ | (175)
Real estate construction | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Commercial real estate | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total commercial | ​ | ​ | (16) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (159) | ​ | ​ | — | ​ | ​ | (175)
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate junior lien | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (77) | ​ | ​ | (77)
Other revolving and installment | ​ | ​ | — | ​ | ​ | (2) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (3) | ​ | ​ | — | ​ | ​ | (5)
Total consumer | ​ | ​ | — | ​ | ​ | (2) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (3) | ​ | ​ | (77) | ​ | ​ | (82)
Total loans | ​ | $ | (16) | ​ | $ | (2) | ​ | $ | — | ​ | $ | — | ​ | $ | (162) | ​ | $ | (77) | ​ | $ | (257)
​
Schedule of amortized cost and related allowance for credit losses on loans by portfolio segment methodology | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2023
​ | ​ | Amortized Cost | ​ | Allowance for Credit Losses on Loans
​ | ​ | Individually | ​ | Collectively | ​ | ​ | ​ | ​ | Individually | ​ | Collectively | ​ | ​ | ​
​ | ​ | Evaluated for | ​ | Evaluated for | ​ | ​ | ​ | ​ | Evaluated for | ​ | Evaluated for | ​ | ​ | ​
(dollars in thousands) |  | Impairment |  | Impairment |  | Total |  | Impairment |  | Impairment |  | Total
Commercial | ​ | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 1,095 | ​ | $ | 552,483 | ​ | $ | 553,578 | ​ | $ | 215 | ​ | $ | 7,585 | ​ | $ | 7,800
Real estate construction | ​ |  | 262 | ​ |  | 108,514 | ​ |  | 108,776 | ​ | ​ | — | ​ | ​ | 4,406 | ​ | ​ | 4,406
Commercial real estate | ​ |  | 896 | ​ |  | 933,428 | ​ |  | 934,324 | ​ | ​ | — | ​ | ​ | 12,344 | ​ | ​ | 12,344
Total commercial | ​ |  | 2,253 | ​ |  | 1,594,425 | ​ |  | 1,596,678 | ​ | ​ | 215 | ​ | ​ | 24,335 | ​ | ​ | 24,550
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ |  | 424 | ​ |  | 697,578 | ​ |  | 698,002 | ​ | ​ | 73 | ​ | ​ | 7,987 | ​ | ​ | 8,060
Residential real estate junior lien | ​ |  | — | ​ |  | 152,281 | ​ |  | 152,281 | ​ | ​ | — | ​ | ​ | 1,277 | ​ | ​ | 1,277
Other revolving and installment | ​ |  | 1 | ​ |  | 39,663 | ​ |  | 39,664 | ​ | ​ | — | ​ | ​ | 314 | ​ | ​ | 314
Total consumer | ​ |  | 425 | ​ |  | 889,522 | ​ |  | 889,947 | ​ | ​ | 73 | ​ | ​ | 9,578 | ​ | ​ | 9,651
Unallocated | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 901
Total loans | ​ | $ | 2,678 | ​ | $ | 2,483,947 | ​ | $ | 2,486,625 | ​ | $ | 288 | ​ | $ | 33,913 | ​ | $ | 35,102
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | Recorded Investment | ​ | Allowance for Loan Losses
​ | ​ | Individually | ​ | Collectively | ​ | ​ | ​ | ​ | Individually | ​ | Collectively | ​ | ​ | ​
(dollars in thousands) |  | Evaluated |  | Evaluated |  | Total |  | Evaluated |  | Evaluated |  | Total
Commercial | ​ | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 1,313 | ​ | $ | 582,563 | ​ | $ | 583,876 | ​ | $ | 275 | ​ | $ | 8,883 | ​ | $ | 9,158
Real estate construction | ​ |  | 262 | ​ |  | 97,548 | ​ |  | 97,810 | ​ | ​ | 97 | ​ | ​ | 1,349 | ​ | ​ | 1,446
Commercial real estate | ​ |  | 1,472 | ​ |  | 880,198 | ​ |  | 881,670 | ​ | ​ | 582 | ​ | ​ | 12,106 | ​ | ​ | 12,688
Total commercial | ​ |  | 3,047 | ​ |  | 1,560,309 | ​ |  | 1,563,356 | ​ | ​ | 954 | ​ | ​ | 22,338 | ​ | ​ | 23,292
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ |  | 535 | ​ |  | 679,016 | ​ |  | 679,551 | ​ | ​ | — | ​ | ​ | 5,769 | ​ | ​ | 5,769
Residential real estate junior lien | ​ |  | 184 | ​ | ​ | 150,295 | ​ |  | 150,479 | ​ | ​ | — | ​ | ​ | 1,289 | ​ | ​ | 1,289
Other revolving and installment | ​ |  | 1 | ​ |  | 50,607 | ​ |  | 50,608 | ​ | ​ | — | ​ | ​ | 528 | ​ | ​ | 528
Total consumer | ​ |  | 720 | ​ |  | 879,918 | ​ |  | 880,638 | ​ | ​ | — | ​ | ​ | 7,586 | ​ | ​ | 7,586
Unallocated | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 268
Total loans | ​ | $ | 3,767 | ​ | $ | 2,440,227 | ​ | $ | 2,443,994 | ​ | $ | 954 | ​ | $ | 29,924 | ​ | $ | 31,146
​
Schedule of financing receivables collateral dependent loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, 2023
​ | ​ | Primary Type of Collateral
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Allowance for
(dollars in thousands) | ​ | Real estate | ​ | Equipment | ​ | Other | ​ | Total | ​ | Credit Losses
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | — | ​ | $ | 120 | ​ | $ | — | ​ | $ | 120 | ​ | $ | 60
Total commercial | ​ | ​ | — | ​ | ​ | 120 | ​ | ​ | — | ​ | ​ | 120 | ​ | ​ | 60
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 424 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10
Total consumer | ​ | ​ | 424 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10
Total loans | ​ | $ | 424 | ​ | $ | 120 | ​ | $ | — | ​ | $ | 120 | ​ | $ | 70
​
Schedule of impaired loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | Recorded | ​ | Unpaid | ​ | Related
(dollars in thousands) |  | Investment |  | Principal |  | Allowance
Impaired loans with a valuation allowance | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 675 | ​ | $ | 711 | ​ | $ | 275
Real estate construction | ​ | ​ | 262 | ​ | ​ | 440 | ​ | ​ | 97
Commercial real estate | ​ |  | 896 | ​ |  | 900 | ​ |  | 582
Residential real estate first mortgage | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total impaired loans with a valuation allowance | ​ | ​ | 1,833 | ​ | ​ | 2,051 | ​ | ​ | 954
Impaired loans without a valuation allowance |  | ​ |  |  | ​ |  |  | ​ |
Commercial and industrial | ​ | ​ | 638 | ​ | ​ | 767 | ​ | ​ | —
Real estate construction | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Commercial real estate | ​ | ​ | 576 | ​ |  | 660 | ​ |  | —
Residential real estate first mortgage | ​ | ​ | 535 | ​ |  | 573 | ​ |  | —
Residential real estate junior lien | ​ | ​ | 184 | ​ |  | 218 | ​ |  | —
Other revolving and installment | ​ | ​ | 1 | ​ |  | 1 | ​ |  | —
Total impaired loans without a valuation allowance | ​ | ​ | 1,934 | ​ | ​ | 2,219 | ​ | ​ | —
Total impaired loans | ​ | ​ |  | ​ |  |  | ​ |  |
Commercial and industrial | ​ | ​ | 1,313 | ​ | ​ | 1,478 | ​ | ​ | 275
Real estate construction | ​ | ​ | 262 | ​ | ​ | 440 | ​ | ​ | 97
Commercial real estate | ​ |  | 1,472 | ​ |  | 1,560 | ​ |  | 582
Residential real estate first mortgage | ​ | ​ | 535 | ​ | ​ | 573 | ​ | ​ | —
Residential real estate junior lien | ​ |  | 184 | ​ |  | 218 | ​ |  | —
Other revolving and installment | ​ |  | 1 | ​ |  | 1 | ​ |  | —
Total impaired loans | ​ | $ | 3,767 | ​ | $ | 4,270 | ​ | $ | 954
​ The table below presents the average recorded investment in impaired loans and interest income for the three months ended March 31, 2023:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2022
​ | ​ | Average | ​ | ​ | ​
​ | ​ | Recorded | ​ | Interest
(dollars in thousands) |  | Investment |  | Income
Impaired loans with a valuation allowance | ​ |  |  | ​ |  |
Commercial and industrial | ​ | $ | 528 | ​ | $ | 3
Commercial real estate | ​ |  | 180 | ​ |  | 2
Residential real estate first mortgage | ​ | ​ | — | ​ | ​ | —
Residential real estate junior lien | ​ |  | — | ​ |  | —
Other revolving and installment | ​ |  | 41 | ​ |  | —
Total impaired loans with a valuation allowance | ​ | ​ | 749 | ​ | ​ | 5
Impaired loans without a valuation allowance | ​ | ​ |  |  | ​ |
Commercial and industrial | ​ | ​ | 1,126 | ​ | ​ | —
Real estate construction | ​ | ​ | — | ​ | ​ | —
Commercial real estate | ​ |  | 642 | ​ |  | —
Residential real estate first mortgage | ​ |  | 1,759 | ​ |  | —
Residential real estate junior lien | ​ |  | 230 | ​ | ​ | —
Other revolving and installment | ​ |  | 9 | ​ |  | —
Total impaired loans without a valuation allowance | ​ | ​ | 3,766 | ​ | ​ | —
Total impaired loans | ​ |  |  | ​ |  |
Commercial and industrial | ​ | ​ | 1,654 | ​ | ​ | 3
Real estate construction | ​ | ​ | — | ​ | ​ | —
Commercial real estate | ​ |  | 822 | ​ |  | 2
Residential real estate first mortgage | ​ |  | 1,759 | ​ |  | —
Residential real estate junior lien | ​ |  | 230 | ​ |  | —
Other revolving and installment | ​ |  | 50 | ​ |  | —
Total impaired loans | ​ | $ | 4,515 | ​ | $ | 5

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