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Loans, net and allowance for credit losses - Major Classification of Loans Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | $ 99,101 | $ 365,944
Year 2 | 368,005 | 427,965
Year 3 | 407,180 | 955,611
Year 4 | 914,183 | 855,257
Year 5 | 810,121 | 257,621
Prior | 1,037,712 | 796,306
Revolving Loans Amortized Cost Basis | 354,659 | 334,666
Revolving Loans Converted to Term | 578 | 135
Total | 3,991,539 | 3,993,505
Gross charge-offs, Year 1 |  | 90
Gross charge-offs, Year 2 | 83 | 837
Gross charge-offs, Year 3 | 439 | 364
Gross charge-offs, Year 4 | 522 | 185
Gross charge-offs, Year 5 | 87 | 32
Gross charge-offs, Prior | 102 | 377
Total | 1,233 | 1,885
Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 20,438 | 62,930
Year 2 | 60,444 | 70,760
Year 3 | 65,892 | 84,663
Year 4 | 78,107 | 78,867
Year 5 | 67,009 | 32,078
Prior | 126,625 | 93,764
Revolving Loans Amortized Cost Basis | 240,310 | 224,972
Revolving Loans Converted to Term | 33 | 68
Total | 658,858 | 648,102
Gross charge-offs, Year 2 |  | 41
Gross charge-offs, Year 4 | 24 | 2
Gross charge-offs, Year 5 | 48 |
Gross charge-offs, Prior | 85 | 8
Total | 157 | 51
Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 3,609 | 5,072
Year 2 | 9,903 | 6,254
Year 3 | 5,828 | 50,886
Year 4 | 49,590 | 99,064
Year 5 | 98,208 | 9,932
Prior | 25,381 | 13,816
Revolving Loans Amortized Cost Basis | 1,620 | 2,894
Total | 194,139 | 187,918
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 38,674 | 162,417
Year 2 | 166,892 | 200,101
Year 3 | 195,360 | 662,861
Year 4 | 645,080 | 530,700
Year 5 | 515,694 | 160,309
Prior | 712,996 | 577,725
Revolving Loans Converted to Term | 545 |
Total | 2,275,241 | 2,294,113
Gross charge-offs, Prior |  | 282
Total |  | 282
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 14,649 | 39,488
Year 2 | 38,875 | 45,172
Year 3 | 43,739 | 77,862
Year 4 | 72,524 | 123,280
Year 5 | 111,605 | 51,127
Prior | 167,086 | 108,442
Revolving Loans Amortized Cost Basis | 111,589 | 105,945
Revolving Loans Converted to Term |  | 67
Total | 560,067 | 551,383
Gross charge-offs, Year 4 | 92 |
Total | 92 |
Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 4,925 | 28,937
Year 2 | 27,069 | 38,379
Year 3 | 34,241 | 38,877
Year 4 | 33,947 | 19,087
Year 5 | 16,082 | 4,175
Prior | 5,624 | 2,559
Revolving Loans Amortized Cost Basis | 1,140 | 855
Total | 123,028 | 132,869
Gross charge-offs, Year 1 |  | 90
Gross charge-offs, Year 2 | 83 | 245
Gross charge-offs, Year 3 | 76 | 255
Gross charge-offs, Year 4 | 172 | 183
Gross charge-offs, Year 5 | 39 | 32
Gross charge-offs, Prior | 17 | 87
Total | 387 | 892
Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 16,806 | 67,100
Year 2 | 64,822 | 67,299
Year 3 | 62,120 | 40,462
Year 4 | 34,935 | 4,259
Year 5 | 1,523 |
Total | 180,206 | 179,120
Gross charge-offs, Year 2 |  | 551
Gross charge-offs, Year 3 | 363 | 109
Gross charge-offs, Year 4 | 234 |
Total | 597 | 660
Pass | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 20,438 | 61,657
Year 2 | 59,201 | 69,329
Year 3 | 64,264 | 83,123
Year 4 | 76,757 | 64,488
Year 5 | 60,353 | 29,950
Prior | 122,994 | 91,906
Revolving Loans Amortized Cost Basis | 216,836 | 199,737
Revolving Loans Converted to Term | 33 | 68
Total | 620,876 | 600,258
Pass | Municipal |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 3,609 | 5,072
Year 2 | 9,903 | 6,254
Year 3 | 5,828 | 50,886
Year 4 | 49,590 | 99,064
Year 5 | 98,208 | 9,932
Prior | 25,381 | 13,816
Revolving Loans Amortized Cost Basis | 1,620 | 2,894
Total | 194,139 | 187,918
Pass | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 38,674 | 161,186
Year 2 | 165,661 | 196,779
Year 3 | 191,904 | 651,254
Year 4 | 634,715 | 525,233
Year 5 | 509,062 | 156,970
Prior | 672,720 | 538,905
Revolving Loans Converted to Term | 545 |
Total | 2,213,281 | 2,230,327
Pass | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 14,649 | 39,488
Year 2 | 38,875 | 45,172
Year 3 | 43,739 | 77,862
Year 4 | 72,524 | 123,154
Year 5 | 111,481 | 50,831
Prior | 165,829 | 106,877
Revolving Loans Amortized Cost Basis | 111,511 | 105,867
Revolving Loans Converted to Term |  | 67
Total | 558,608 | 549,318
Pass | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 4,925 | 28,872
Year 2 | 26,991 | 38,223
Year 3 | 34,101 | 38,668
Year 4 | 33,662 | 18,963
Year 5 | 15,906 | 4,132
Prior | 5,537 | 2,495
Revolving Loans Amortized Cost Basis | 1,030 | 853
Total | 122,152 | 132,206
Pass | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 | 16,806 | 67,100
Year 2 | 64,659 | 66,341
Year 3 | 60,968 | 39,323
Year 4 | 33,982 | 4,259
Year 5 | 1,523 |
Total | 177,938 | 177,023
Special Mention | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 1,273
Year 2 | 1,243 | 1,131
Year 3 | 1,125 | 686
Year 4 | 629 | 13,475
Year 5 | 5,787 | 2,043
Prior | 3,087 | 1,261
Revolving Loans Amortized Cost Basis | 16,263 | 16,840
Total | 28,134 | 36,709
Special Mention | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 1,231
Year 2 |  | 46
Year 3 | 44 | 2,724
Year 4 | 1,206 | 4,361
Year 5 | 4,100 | 1,635
Prior | 26,774 | 24,951
Total | 32,124 | 34,948
Special Mention | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 |  | 261
Year 3 | 152 | 125
Year 4 | 107 |
Total | 259 | 386
Substandard | Commercial |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 |  | 300
Year 3 | 503 | 854
Year 4 | 721 | 904
Year 5 | 869 | 85
Prior | 544 | 597
Revolving Loans Amortized Cost Basis | 7,211 | 8,395
Total | 9,848 | 11,135
Substandard | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 1,231 | 3,276
Year 3 | 3,412 | 8,883
Year 4 | 9,159 | 1,106
Year 5 | 2,532 | 1,704
Prior | 13,502 | 13,869
Total | 29,836 | 28,838
Substandard | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 4 |  | 126
Year 5 | 124 | 296
Prior | 1,257 | 1,565
Revolving Loans Amortized Cost Basis | 78 | 78
Total | 1,459 | 2,065
Substandard | Consumer |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 1 |  | 65
Year 2 | 78 | 156
Year 3 | 140 | 209
Year 4 | 285 | 124
Year 5 | 176 | 43
Prior | 87 | 64
Revolving Loans Amortized Cost Basis | 110 | 2
Total | 876 | 663
Substandard | Equipment Financing |  |
Accounts, Notes, Loans and Financing Receivable |  |
Year 2 | 163 | 697
Year 3 | 1,000 | 1,014
Year 4 | 846 |
Total | $ 2,009 | $ 1,711

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