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Loans, net and allowance for credit losses - Major Classification of Loans Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | $ 297,976 | $ 212,647
Year 2 | 435,854 | 726,011
Year 3 | 971,690 | 693,987
Year 4 | 888,161 | 216,917
Year 5 | 277,375 | 218,872
Prior | 841,182 | 549,793
Revolving Loans Amortized Cost Basis | 356,993 | 217,413
Revolving Loans Converted to Term | 452 | 14,257
Total | 4,069,683 | 2,849,897
Gross charge-offs, Year 1 | 90 |
Gross charge-offs, Year 2 | 242 | 95
Gross charge-offs, Year 3 | 186 | 101
Gross charge-offs, Year 4 | 127 | 90
Gross charge-offs, Year 5 | 22 | 49
Gross charge-offs, Prior | 109 | 2,686
Gross charge-offs, Revolving Loans Amortized Cost Basis |  | 4
Total | 776 | 3,025
Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 56,176 | 9,871
Year 2 | 87,678 | 39,067
Year 3 | 83,181 | 28,351
Year 4 | 91,007 | 29,966
Year 5 | 44,345 | 44,584
Prior | 109,446 | 82,773
Revolving Loans Amortized Cost Basis | 228,072 | 133,149
Revolving Loans Converted to Term | 7 | 650
Total | 699,912 | 368,411
Gross charge-offs, Year 2 | 41 |
Gross charge-offs, Year 4 | 2 | 21
Gross charge-offs, Prior | 8 | 33
Gross charge-offs, Revolving Loans Amortized Cost Basis |  | 4
Total | 51 | 58
Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 5,249 | 1,888
Year 2 | 6,180 | 48,095
Year 3 | 51,520 | 94,791
Year 4 | 100,817 | 10,804
Year 5 | 10,347 | 16
Prior | 15,999 | 19,652
Revolving Loans Amortized Cost Basis | 55 | 58
Total | 190,167 | 175,304
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 136,530 | 156,446
Year 2 | 191,176 | 556,391
Year 3 | 667,311 | 493,026
Year 4 | 546,579 | 143,228
Year 5 | 164,682 | 154,483
Prior | 596,521 | 359,427
Revolving Loans Amortized Cost Basis | 6,652 |
Revolving Loans Converted to Term | 137 | 117
Total | 2,309,588 | 1,863,118
Gross charge-offs, Prior | 27 | 2,598
Total | 27 | 2,598
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 23,736 | 17,389
Year 2 | 34,801 | 52,093
Year 3 | 78,806 | 65,280
Year 4 | 125,912 | 27,447
Year 5 | 52,941 | 16,652
Prior | 112,908 | 84,940
Revolving Loans Amortized Cost Basis | 121,178 | 83,512
Revolving Loans Converted to Term | 308 | 13,490
Total | 550,590 | 360,803
Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 25,689 | 27,053
Year 2 | 42,014 | 30,365
Year 3 | 44,450 | 12,539
Year 4 | 21,403 | 5,472
Year 5 | 5,060 | 3,137
Prior | 6,308 | 3,001
Revolving Loans Amortized Cost Basis | 1,036 | 694
Total | 145,960 | 82,261
Gross charge-offs, Year 1 | 90 |
Gross charge-offs, Year 2 | 143 | 95
Gross charge-offs, Year 3 | 186 | 101
Gross charge-offs, Year 4 | 125 | 69
Gross charge-offs, Year 5 | 22 | 49
Gross charge-offs, Prior | 74 | 55
Total | 640 | 369
Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 50,596 |
Year 2 | 74,005 |
Year 3 | 46,422 |
Year 4 | 2,443 |
Total | 173,466 |
Gross charge-offs, Year 2 | 58 |
Total | 58 |
Pass | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 54,824 | 9,856
Year 2 | 85,532 | 38,172
Year 3 | 80,128 | 28,127
Year 4 | 90,107 | 29,966
Year 5 | 40,718 | 44,551
Prior | 107,295 | 82,190
Revolving Loans Amortized Cost Basis | 219,160 | 131,536
Revolving Loans Converted to Term | 7 | 650
Total | 677,771 | 365,048
Pass | Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 5,249 | 1,888
Year 2 | 6,180 | 48,095
Year 3 | 51,520 | 94,791
Year 4 | 100,817 | 10,804
Year 5 | 10,347 | 16
Prior | 15,999 | 19,652
Revolving Loans Amortized Cost Basis | 55 | 58
Total | 190,167 | 175,304
Pass | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 136,530 | 156,277
Year 2 | 188,333 | 553,754
Year 3 | 660,675 | 491,506
Year 4 | 536,817 | 143,068
Year 5 | 163,176 | 153,426
Prior | 563,148 | 351,142
Revolving Loans Amortized Cost Basis | 6,553 |
Revolving Loans Converted to Term | 137 | 117
Total | 2,255,369 | 1,849,290
Pass | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 23,736 | 17,385
Year 2 | 34,797 | 52,093
Year 3 | 78,746 | 65,280
Year 4 | 125,726 | 27,118
Year 5 | 52,640 | 16,652
Prior | 111,597 | 84,652
Revolving Loans Amortized Cost Basis | 121,174 | 83,507
Revolving Loans Converted to Term | 308 | 13,490
Total | 548,724 | 360,177
Pass | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 25,689 | 27,053
Year 2 | 41,912 | 30,307
Year 3 | 44,430 | 12,460
Year 4 | 21,337 | 5,441
Year 5 | 5,009 | 3,107
Prior | 6,303 | 2,981
Revolving Loans Amortized Cost Basis | 1,034 | 694
Total | 145,714 | 82,043
Pass | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 50,596 |
Year 2 | 72,636 |
Year 3 | 46,005 |
Year 4 | 2,443 |
Total | 171,680 |
Special Mention | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 1,352 |
Year 2 | 1,136 | 876
Year 3 | 701 | 182
Year 4 | 458 |
Year 5 | 2,449 |
Prior | 1,464 | 49
Revolving Loans Amortized Cost Basis | 1,806 | 832
Total | 9,366 | 1,939
Special Mention | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 2,342 | 1,299
Year 3 | 950 |
Year 4 | 3,708 |
Year 5 | 1,351 | 360
Prior | 25,304 | 2,761
Revolving Loans Amortized Cost Basis | 99 |
Total | 33,754 | 4,420
Special Mention | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 710 |
Year 3 | 417 |
Total | 1,127 |
Substandard | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 15
Year 2 | 1,010 | 19
Year 3 | 2,352 | 42
Year 4 | 442 |
Year 5 | 1,178 | 33
Prior | 687 | 534
Revolving Loans Amortized Cost Basis | 7,106 | 781
Total | 12,775 | 1,424
Substandard | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 169
Year 2 | 501 | 1,338
Year 3 | 5,686 | 1,520
Year 4 | 6,054 | 160
Year 5 | 155 | 697
Prior | 8,069 | 5,524
Total | 20,465 | 9,408
Substandard | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 4
Year 2 | 4 |
Year 3 | 60 |
Year 4 | 186 | 329
Year 5 | 301 |
Prior | 1,311 | 288
Revolving Loans Amortized Cost Basis | 4 | 5
Total | 1,866 | 626
Substandard | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 102 | 58
Year 3 | 20 | 79
Year 4 | 66 | 31
Year 5 | 51 | 30
Prior | 5 | 20
Revolving Loans Amortized Cost Basis | 2 |
Total | 246 | $ 218
Substandard | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 659 |
Total | $ 659 |

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