XML 41 R31.htm IDEA: XBRL DOCUMENT
v3.23.2

Loans and Allowance for Credit Losses (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Loans and Allowance for Credit Losses |
Schedule of total loans outstanding by portfolio segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31,
(dollars in thousands) |  | 2023 |  | 2022
Commercial | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 551,860 | ​ | $ | 583,876
Real estate construction | ​ |  | 78,428 | ​ |  | 97,810
Commercial real estate | ​ |  | 1,003,821 | ​ |  | 881,670
Total commercial | ​ |  | 1,634,109 | ​ |  | 1,563,356
Consumer | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 707,630 | ​ |  | 679,551
Residential real estate junior lien | ​ |  | 157,231 | ​ |  | 150,479
Other revolving and installment | ​ |  | 34,552 | ​ |  | 50,608
Total consumer | ​ |  | 899,413 | ​ |  | 880,638
Total loans | ​ | $ | 2,533,522 | ​ | $ | 2,443,994
Schedule of past due aging analysis of the loan portfolio | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2023
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 90 Days | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Accruing | ​ | 30 - 89 Days | ​ | or More | ​ | ​ | ​ | ​ | Total
(dollars in thousands) |  | Current |  | Past Due |  | Past Due |  | Nonaccrual |  | Loans
Commercial |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial and industrial | ​ | $ | 542,769 | ​ | $ | 8,710 | ​ | $ | — | ​ | $ | 381 | ​ | $ | 551,860
Real estate construction | ​ |  | 78,277 | ​ |  | — | ​ |  | — | ​ |  | 151 | ​ |  | 78,428
Commercial real estate | ​ |  | 1,002,925 | ​ |  | — | ​ |  | — | ​ |  | 896 | ​ |  | 1,003,821
Total commercial | ​ |  | 1,623,971 | ​ |  | 8,710 | ​ |  | — | ​ |  | 1,428 | ​ |  | 1,634,109
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 704,957 | ​ |  | 2,027 | ​ |  | 347 | ​ | ​ | 299 | ​ |  | 707,630
Residential real estate junior lien | ​ |  | 156,626 | ​ |  | 105 | ​ |  | — | ​ |  | 500 | ​ |  | 157,231
Other revolving and installment | ​ |  | 34,400 | ​ |  | 146 | ​ |  | — | ​ |  | 6 | ​ |  | 34,552
Total consumer | ​ |  | 895,983 | ​ |  | 2,278 | ​ |  | 347 | ​ |  | 805 | ​ |  | 899,413
Total loans | ​ | $ | 2,519,954 | ​ | $ | 10,988 | ​ | $ | 347 | ​ | $ | 2,233 | ​ | $ | 2,533,522
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 June 30, 2023
​ | ​ | Nonaccrual | ​ | ​ | ​ | ​ | 90 Days
​ | ​ | with no Allowance | ​ | ​ | ​ | ​ | or More
(dollars in thousands) | ​ | for Credit Losses | ​ | Nonaccrual | ​ | Past Due
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 119 | ​ | $ | 381 | ​ | $ | —
Real estate construction | ​ | ​ | 151 | ​ | ​ | 151 | ​ | ​ | —
Commercial real estate | ​ | ​ | — | ​ | ​ | 896 | ​ | ​ | —
Total commercial | ​ | ​ | 270 | ​ | ​ | 1,428 | ​ | ​ | —
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 293 | ​ | ​ | 299 | ​ | ​ | 347
Residential real estate junior lien | ​ | ​ | 500 | ​ | ​ | 500 | ​ | ​ | —
Other revolving and installment | ​ | ​ | — | ​ | ​ | 6 | ​ | ​ | —
Total consumer | ​ | ​ | 793 | ​ | ​ | 805 | ​ | ​ | 347
Total loans | ​ | $ | 1,063 | ​ | $ | 2,233 | ​ | $ | 347
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 June 30, 2023 | ​ | 2023 | ​ | 2022 | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | Prior | ​ | Cost Basis | ​ | Total
Commercial and industrial | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Pass | ​ | $ | 72,021 | ​ | $ | 124,487 | ​ | $ | 81,827 | ​ | $ | 72,874 | ​ | $ | 40,610 | ​ | $ | 24,848 | ​ | $ | 102,467 | ​ | $ | 519,134
Substandard | ​ | ​ | — | ​ | ​ | 5,223 | ​ | ​ | 415 | ​ | ​ | 8,463 | ​ | ​ | 186 | ​ | ​ | 823 | ​ | ​ | 17,616 | ​ | ​ | 32,726
Subtotal | ​ | ​ | 72,021 | ​ | ​ | 129,710 | ​ | ​ | 82,242 | ​ | ​ | 81,337 | ​ | ​ | 40,796 | ​ | ​ | 25,671 | ​ | ​ | 120,083 | ​ | ​ | 551,860
Real estate construction | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 6,263 | ​ | ​ | 37,948 | ​ | ​ | 19,315 | ​ | ​ | 4,440 | ​ | ​ | 9,150 | ​ | ​ | 1,006 | ​ | ​ | 306 | ​ | ​ | 78,428
Substandard | ​ | ​ | — |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | — | ​ | ​ | — |  | ​ | —
Subtotal | ​ | ​ | 6,263 | ​ | ​ | 37,948 | ​ | ​ | 19,315 | ​ | ​ | 4,440 | ​ | ​ | 9,150 | ​ | ​ | 1,006 | ​ | ​ | 306 | ​ | ​ | 78,428
Commercial real estate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 105,650 | ​ | ​ | 278,338 | ​ | ​ | 150,233 | ​ | ​ | 160,601 | ​ | ​ | 110,705 | ​ | ​ | 176,802 | ​ | ​ | 14,685 | ​ | ​ | 997,014
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 886 | ​ | ​ | — | ​ | ​ | 4,096 | ​ | ​ | 1,825 | ​ | ​ | — | ​ | ​ | 6,807
Subtotal | ​ | ​ | 105,650 | ​ | ​ | 278,338 | ​ | ​ | 151,119 | ​ | ​ | 160,601 | ​ | ​ | 114,801 | ​ | ​ | 178,627 | ​ | ​ | 14,685 | ​ | ​ | 1,003,821
Residential real estate first mortgage | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 40,090 | ​ | ​ | 202,056 | ​ | ​ | 226,785 | ​ | ​ | 111,801 | ​ | ​ | 34,894 | ​ | ​ | 91,680 | ​ | ​ | 216 | ​ | ​ | 707,522
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 108 | ​ | ​ | — | ​ | ​ | 108
Subtotal | ​ | ​ | 40,090 | ​ | ​ | 202,056 | ​ | ​ | 226,785 | ​ | ​ | 111,801 | ​ | ​ | 34,894 | ​ | ​ | 91,788 | ​ | ​ | 216 | ​ | ​ | 707,630
Residential real estate junior lien | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 13,552 | ​ | ​ | 17,683 | ​ | ​ | 6,751 | ​ | ​ | 4,936 | ​ | ​ | 1,947 | ​ | ​ | 6,939 | ​ | ​ | 105,066 | ​ | ​ | 156,874
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 357 | ​ | ​ | — | ​ | ​ | 357
Subtotal | ​ | ​ | 13,552 | ​ | ​ | 17,683 | ​ | ​ | 6,751 | ​ | ​ | 4,936 | ​ | ​ | 1,947 | ​ | ​ | 7,296 | ​ | ​ | 105,066 | ​ | ​ | 157,231
Other revolving and installment | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 4,090 | ​ | ​ | 9,031 | ​ | ​ | 1,467 | ​ | ​ | 6,071 | ​ | ​ | 2,506 | ​ | ​ | 2,037 | ​ | ​ | 9,350 | ​ | ​ | 34,552
Substandard | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Subtotal | ​ | ​ | 4,090 | ​ | ​ | 9,031 | ​ | ​ | 1,467 | ​ | ​ | 6,071 | ​ | ​ | 2,506 | ​ | ​ | 2,037 | ​ | ​ | 9,350 | ​ | ​ | 34,552
Total Loans | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pass | ​ | ​ | 241,666 | ​ | ​ | 669,543 | ​ | ​ | 486,378 | ​ | ​ | 360,723 | ​ | ​ | 199,812 | ​ | ​ | 303,312 | ​ | ​ | 232,090 | ​ | ​ | 2,493,524
Substandard | ​ | ​ | — | ​ | ​ | 5,223 | ​ | ​ | 1,301 | ​ | ​ | 8,463 | ​ | ​ | 4,282 | ​ | ​ | 3,113 | ​ | ​ | 17,616 | ​ | ​ | 39,998
Total loans | ​ | $ | 241,666 | ​ | $ | 674,766 | ​ | $ | 487,679 | ​ | $ | 369,186 | ​ | $ | 204,094 | ​ | $ | 306,425 | ​ | $ | 249,706 | ​ | $ | 2,533,522
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 June 30, 2023
​ | ​ | Beginning | ​ | Provision for | ​ | Loan | ​ | Loan | ​ | Ending
(dollars in thousands) |  | Balance |  | Credit Losses(1) |  | Charge-offs |  | Recoveries |  | Balance
Commercial |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial and industrial | ​ | $ | 7,800 | ​ | $ | (340) | ​ | $ | (85) | ​ | $ | 438 | ​ | $ | 7,813
Real estate construction | ​ |  | 4,406 | ​ |  | (760) | ​ |  | — | ​ |  | — | ​ |  | 3,646
Commercial real estate | ​ |  | 12,344 | ​ |  | 609 | ​ |  | — | ​ |  | 12 | ​ |  | 12,965
Total commercial | ​ |  | 24,550 | ​ |  | (491) | ​ |  | (85) | ​ |  | 450 | ​ |  | 24,424
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 8,060 | ​ |  | (159) | ​ |  | — | ​ |  | — | ​ |  | 7,901
Residential real estate junior lien | ​ |  | 1,277 | ​ |  | 28 | ​ |  | — | ​ |  | 46 | ​ |  | 1,351
Other revolving and installment | ​ |  | 314 | ​ |  | (13) | ​ |  | (23) | ​ |  | 15 | ​ |  | 293
Total consumer | ​ |  | 9,651 | ​ |  | (144) | ​ |  | (23) | ​ |  | 61 | ​ |  | 9,545
Unallocated | ​ |  | 901 | ​ |  | 826 | ​ |  | — | ​ |  | — | ​ |  | 1,727
Total | ​ | $ | 35,102 | ​ | $ | 191 | ​ | $ | (108) | ​ | $ | 511 | ​ | $ | 35,696
(1) | The difference in the credit loss expense reported herein compared to the Consolidated Statements of Income is associated with the credit loss expense reversal of $186 thousand related to off-balance sheet credit exposures and $5 thousand related to investment securities held-to-maturity.
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 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) | ​ | $ | (717) | ​ | $ | (260) | ​ | $ | 494 | ​ | $ | 7,813
Real estate construction | ​ | ​ | 1,446 | ​ | ​ | 2,518 | ​ | ​ | (318) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,646
Commercial real estate | ​ | ​ | 12,688 | ​ | ​ | (424) | ​ | ​ | 678 | ​ | ​ | — | ​ | ​ | 23 | ​ | ​ | 12,965
Total commercial | ​ | ​ | 23,292 | ​ | ​ | 1,232 | ​ | ​ | (357) | ​ | ​ | (260) | ​ | ​ | 517 | ​ | ​ | 24,424
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 5,769 | ​ | ​ | 2,080 | ​ | ​ | 50 | ​ | ​ | — | ​ | ​ | 2 | ​ | ​ | 7,901
Residential real estate junior lien | ​ | ​ | 1,289 | ​ | ​ | (67) | ​ | ​ | 154 | ​ | ​ | (77) | ​ | ​ | 52 | ​ | ​ | 1,351
Other revolving and installment | ​ | ​ | 528 | ​ | ​ | (104) | ​ | ​ | (130) | ​ | ​ | (28) | ​ | ​ | 27 | ​ | ​ | 293
Total consumer | ​ | ​ | 7,586 | ​ | ​ | 1,909 | ​ | ​ | 74 | ​ | ​ | (105) | ​ | ​ | 81 | ​ | ​ | 9,545
Unallocated | ​ | ​ | 268 | ​ | ​ | 716 | ​ | ​ | 743 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,727
Total | ​ | $ | 31,146 | ​ | $ | 3,857 | ​ | $ | 460 | ​ | $ | (365) | ​ | $ | 598 | ​ | $ | 35,696
(1) | The difference in the credit loss expense reported herein compared to the Consolidated Statements of Income is associated with the credit loss expense of $44 thousand related to off-balance sheet credit exposures and $46 thousand related to investment securities held-to-maturity.
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, 2022
​ | ​ | Beginning | ​ | Provision for | ​ | Loan | ​ | Loan | ​ | Ending
(dollars in thousands) |  | Balance |  | Loan Losses |  | Charge-offs |  | Recoveries |  | Balance
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 9,795 | ​ | $ | 1,085 | ​ | $ | (637) | ​ | $ | 90 | ​ | $ | 10,333
Real estate construction | ​ | ​ | 810 | ​ |  | 68 | ​ |  | — | ​ |  | — | ​ | ​ | 878
Commercial real estate | ​ | ​ | 11,946 | ​ |  | (1,123) | ​ |  | — | ​ |  | 11 | ​ | ​ | 10,834
Total commercial | ​ | ​ | 22,551 | ​ |  | 30 | ​ |  | (637) | ​ |  | 101 | ​ | ​ | 22,045
Consumer | ​ | ​ | ​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 6,661 | ​ |  | (486) | ​ |  | — | ​ |  | — | ​ | ​ | 6,175
Residential real estate junior lien | ​ | ​ | 1,400 | ​ |  | (134) | ​ |  | — | ​ |  | 201 | ​ | ​ | 1,467
Other revolving and installment | ​ | ​ | 644 | ​ |  | (5) | ​ |  | (37) | ​ |  | 32 | ​ | ​ | 634
Total consumer | ​ | ​ | 8,705 | ​ | ​ | (625) | ​ | ​ | (37) | ​ | ​ | 233 | ​ | ​ | 8,276
Unallocated | ​ | ​ | 457 | ​ |  | 595 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,052
Total | ​ | $ | 31,713 | ​ | $ | — | ​ | $ | (674) | ​ | $ | 334 | ​ | $ | 31,373
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 2022
​ | ​ | Beginning | ​ | Provision for | ​ | Loan | ​ | Loan | ​ | Ending
(dollars in thousands) |  | Balance |  | Loan Losses |  | Charge-offs |  | Recoveries |  | Balance
Commercial | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial and industrial | ​ | $ | 8,925 | ​ | $ | 1,856 | ​ | $ | (664) | ​ | $ | 216 | ​ | $ | 10,333
Real estate construction | ​ |  | 783 | ​ |  | 95 | ​ |  | — | ​ |  | — | ​ |  | 878
Commercial real estate | ​ |  | 12,376 | ​ |  | (1,564) | ​ |  | — | ​ |  | 22 | ​ |  | 10,834
Total commercial | ​ |  | 22,084 | ​ |  | 387 | ​ |  | (664) | ​ |  | 238 | ​ |  | 22,045
Consumer | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential real estate first mortgage | ​ |  | 6,532 | ​ |  | (357) | ​ |  | — | ​ |  | — | ​ |  | 6,175
Residential real estate junior lien | ​ |  | 1,295 | ​ |  | (42) | ​ |  | — | ​ | ​ | 214 | ​ |  | 1,467
Other revolving and installment | ​ |  | 481 | ​ |  | 140 | ​ |  | (55) | ​ |  | 68 | ​ |  | 634
Total consumer | ​ |  | 8,308 | ​ |  | (259) | ​ |  | (55) | ​ |  | 282 | ​ |  | 8,276
Unallocated | ​ |  | 1,180 | ​ |  | (128) | ​ |  | — | ​ |  | — | ​ |  | 1,052
Total | ​ | $ | 31,572 | ​ | $ | — | ​ | $ | (719) | ​ | $ | 520 | ​ | $ | 31,373
Schedule of amortized cost and related allowance for credit losses on loans by portfolio segment methodology | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 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 | ​ | $ | 381 | ​ | $ | 551,479 | ​ | $ | 551,860 | ​ | $ | 78 | ​ | $ | 7,735 | ​ | $ | 7,813
Real estate construction | ​ |  | — | ​ |  | 78,428 | ​ |  | 78,428 | ​ | ​ | — | ​ | ​ | 3,646 | ​ | ​ | 3,646
Commercial real estate | ​ |  | 886 | ​ |  | 1,002,935 | ​ |  | 1,003,821 | ​ | ​ | 572 | ​ | ​ | 12,393 | ​ | ​ | 12,965
Total commercial | ​ |  | 1,267 | ​ |  | 1,632,842 | ​ |  | 1,634,109 | ​ | ​ | 650 | ​ | ​ | 23,774 | ​ | ​ | 24,424
Consumer | ​ |  |  | ​ |  |  | ​ |  |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ |  | 299 | ​ |  | 707,331 | ​ |  | 707,630 | ​ | ​ | 5 | ​ | ​ | 7,896 | ​ | ​ | 7,901
Residential real estate junior lien | ​ |  | 500 | ​ |  | 156,731 | ​ |  | 157,231 | ​ | ​ | — | ​ | ​ | 1,351 | ​ | ​ | 1,351
Other revolving and installment | ​ |  | 6 | ​ |  | 34,546 | ​ |  | 34,552 | ​ | ​ | 6 | ​ | ​ | 287 | ​ | ​ | 293
Total consumer | ​ |  | 805 | ​ |  | 898,608 | ​ |  | 899,413 | ​ | ​ | 11 | ​ | ​ | 9,534 | ​ | ​ | 9,545
Unallocated | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,727
Total loans | ​ | $ | 2,072 | ​ | $ | 2,531,450 | ​ | $ | 2,533,522 | ​ | $ | 661 | ​ | $ | 33,308 | ​ | $ | 35,696
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 June 30, 2023
​ | ​ | Primary Type of Collateral
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Allowance for
(dollars in thousands) | ​ | Real estate | ​ | Equipment | ​ | Other | ​ | Total | ​ | Credit Losses
Commercial | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | — | ​ | $ | 188 | ​ | $ | — | ​ | $ | 188 | ​ | $ | 68
Commercial real estate | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total commercial | ​ | ​ | — | ​ | ​ | 188 | ​ | ​ | — | ​ | ​ | 188 | ​ | ​ | 68
Consumer | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate first mortgage | ​ | ​ | 299 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 299 | ​ | ​ | 5
Residential real estate junior lien | ​ | ​ | 500 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 500 | ​ | ​ | —
Other revolving and installment | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 6 | ​ | ​ | 6 | ​ | ​ | 6
Total consumer | ​ | ​ | 799 | ​ | ​ | — | ​ | ​ | 6 | ​ | ​ | 805 | ​ | ​ | 11
Total loans | ​ | $ | 799 | ​ | $ | 188 | ​ | $ | 6 | ​ | $ | 993 | ​ | $ | 79
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 and six months ended June 30, 2022:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30,
​ | ​ | 2022
​ | ​ | Average | ​ | ​ | ​
​ | ​ | Recorded | ​ | Interest
(dollars in thousands) |  | Investment |  | Income
Impaired loans with a valuation allowance | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | $ | 1,018 | ​ | $ | 2
Commercial real estate | ​ | ​ | 176 | ​ | ​ | 2
Other revolving and installment | ​ | ​ | 75 | ​ | ​ | —
Total impaired loans with a valuation allowance | ​ | ​ | 1,269 | ​ | ​ | 4
Impaired loans without a valuation allowance |  | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | ​ | 761 | ​ | ​ | —
Commercial real estate | ​ | ​ | 629 | ​ | ​ | —
Residential real estate first mortgage | ​ | ​ | 1,962 | ​ | ​ | —
Residential real estate junior lien | ​ | ​ | 196 | ​ | ​ | —
Other revolving and installment | ​ | ​ | — | ​ | ​ | —
Total impaired loans without a valuation allowance | ​ | ​ | 3,548 | ​ | ​ | —
Total impaired loans | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ | ​ | 1,779 | ​ | ​ | 2
Commercial real estate | ​ | ​ | 805 | ​ | ​ | 2
Residential real estate first mortgage | ​ | ​ | 1,962 | ​ | ​ | —
Residential real estate junior lien | ​ | ​ | 196 | ​ | ​ | —
Other revolving and installment | ​ | ​ | 75 | ​ | ​ | —
Total impaired loans | ​ | $ | 4,817 | ​ | $ | 4
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30,
​ | ​ | 2022
​ | ​ | Average | ​ | ​ | ​
​ | ​ | Recorded | ​ | Interest
(dollars in thousands) |  | Investment |  | Income
Impaired loans with a valuation allowance | ​ |  |  | ​ |  |
Commercial and industrial | ​ | $ | 1,156 | ​ | $ | 6
Commercial real estate | ​ |  | 177 | ​ |  | 3
Other revolving and installment | ​ |  | 157 | ​ |  | —
Total impaired loans with a valuation allowance | ​ | ​ | 1,490 | ​ | ​ | 9
Impaired loans without a valuation allowance | ​ | ​ |  |  | ​ |
Commercial and industrial | ​ | ​ | 761 | ​ | ​ | —
Commercial real estate | ​ |  | 629 | ​ |  | —
Residential real estate first mortgage | ​ |  | 1,953 | ​ |  | —
Residential real estate junior lien | ​ |  | 198 | ​ | ​ | —
Total impaired loans without a valuation allowance | ​ | ​ | 3,541 | ​ | ​ | —
Total impaired loans | ​ |  |  | ​ |  |
Commercial and industrial | ​ | ​ | 1,917 | ​ | ​ | 6
Commercial real estate | ​ |  | 806 | ​ |  | 3
Residential real estate first mortgage | ​ |  | 1,953 | ​ |  | —
Residential real estate junior lien | ​ |  | 198 | ​ |  | —
Other revolving and installment | ​ |  | 157 | ​ |  | —
Total impaired loans | ​ | $ | 5,031 | ​ | $ | 9

X
- Definition Tabular disclosure of the financing receivables by portfolio segment and impairment methodology. + References No definition available. + Details
Name: | alrs_ScheduleOfFinancingReceivablesByPortfolioSegmentAndImpairmentMethodologyTableTextBlock
Namespace Prefix: | alrs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of collateral dependent financing receivables, by primary type of collateral. + References No definition available. + Details
Name: | alrs_ScheduleOfFinancingReceivablesCollateralDependentLoansByPrimaryTypeOfCollateralTableTextBlock
Namespace Prefix: | alrs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableGrossAllowanceAndNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-29 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of impaired financing receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
Name: | us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of aging analysis for financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7A + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable on nonaccrual status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
Name: | us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration