XML 37 R23.htm IDEA: XBRL DOCUMENT
v3.21.1

LOANS AND ALLOWANCE FOR CREDIT LOSSES (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Schedule of Loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
(in thousands) |  | 2021 |  | 2020
Commercial construction | ​ | $ | 117,464 | ​ | $ | 117,882
Commercial real estate owner occupied | ​ |  | 233,847 | ​ |  | 219,217
Commercial real estate non-owner occupied | ​ |  | 733,507 | ​ |  | 716,776
Tax exempt | ​ |  | 46,541 | ​ |  | 47,862
Commercial and industrial | ​ |  | 376,395 | ​ |  | 355,684
Residential real estate | ​ |  | 940,127 | ​ |  | 995,216
Home equity | ​ |  | 93,625 | ​ |  | 100,096
Consumer other | ​ |  | 9,558 | ​ |  | 10,152
Total loans | ​ |  | 2,551,064 | ​ |  | 2,562,885
Allowance for credit losses | ​ |  | 23,653 | ​ |  | 19,082
Net loans | ​ | $ | 2,527,411 | ​ | $ | 2,543,803
Summary of Unamortized Net Costs and Premiums in Business Activity Loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
(in thousands) |  | 2021 |  | 2020
Unamortized net loan origination costs | ​ | $ | 3,774 | ​ | $ | 5,157
Unamortized net premium on purchased loans | ​ |  | (82) | ​ |  | (85)
Total unamortized net costs and premiums | ​ | $ | 3,692 | ​ | $ | 5,072
Schedule of Activity in the Allowance for Loan Losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, 2021
​ | ​ | Balance at | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Beginning of | ​ | Impact of ASC | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Balance at
(in thousands) |  | Period |  | 326 |  | Charge Offs |  | Recoveries |  | Provision |  | End of Period
Commercial construction | ​ | $ | 824 | ​ | $ | 1,196 | ​ | $ | — | ​ | $ | 18 | ​ | $ | (246) | ​ | $ | 1,792
Commercial real estate owner occupied | ​ |  | 1,783 | ​ |  | 708 | ​ |  | (153) | ​ |  | 0 | ​ |  | 1,014 | ​ |  | 3,352
Commercial real estate non-owner occupied | ​ |  | 7,864 | ​ |  | (2,008) | ​ |  | — | ​ |  | 4 | ​ |  | 42 | ​ |  | 5,902
Tax exempt | ​ |  | 58 | ​ |  | 40 | ​ |  | — | ​ |  | — | ​ |  | (4) | ​ |  | 94
Commercial and industrial | ​ |  | 3,137 | ​ |  | 2,996 | ​ |  | — | ​ |  | 1 | ​ |  | (1,094) | ​ |  | 5,040
Residential real estate | ​ |  | 5,010 | ​ |  | 1,732 | ​ |  | (40) | ​ |  | 13 | ​ |  | (146) | ​ |  | 6,569
Home equity | ​ |  | 285 | ​ |  | 603 | ​ |  | (22) | ​ |  | 11 | ​ |  | (54) | ​ |  | 823
Consumer other | ​ |  | 121 | ​ |  | (39) | ​ |  | (1) | ​ |  | 1 | ​ |  | (1) | ​ |  | 81
Total | ​ | $ | 19,082 | ​ | $ | 5,228 | ​ | $ | (216) | ​ | $ | 48 | ​ | $ | (489) | ​ | $ | 23,653
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, 2020
​ | ​ | Balance at | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Beginning of | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Balance at
(in thousands) |  | Period |  | Charge Offs |  | Recoveries |  | Provision |  | End of Period
Commercial construction | ​ | $ | 317 | ​ | $ | — | ​ | $ | — | ​ | $ | 78 | ​ | $ | 395
Commercial real estate owner occupied | ​ |  | 2,368 | ​ |  | — | ​ |  | — | ​ |  | (882) | ​ |  | 1,486
Commercial real estate non-owner occupied | ​ |  | 4,695 | ​ |  | (871) | ​ |  | 25 | ​ |  | 1,465 | ​ |  | 5,314
Tax exempt | ​ |  | 67 | ​ |  | — | ​ |  | — | ​ |  | (10) | ​ |  | 57
Commercial and industrial | ​ |  | 3,262 | ​ |  | (179) | ​ |  | 9 | ​ |  | 231 | ​ |  | 3,323
Residential real estate | ​ |  | 4,213 | ​ |  | (8) | ​ |  | 7 | ​ |  | 79 | ​ |  | 4,291
Home equity | ​ |  | 320 | ​ |  | — | ​ |  | — | ​ |  | 8 | ​ |  | 328
Consumer other | ​ |  | 111 | ​ |  | (153) | ​ |  | 3 | ​ |  | 142 | ​ |  | 103
Total | ​ | $ | 15,353 | ​ | $ | (1,211) | ​ | $ | 44 | ​ | $ | 1,111 | ​ | $ | 15,297
​
Schedule of Loans by Risk Rating | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
(in thousands) | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | 2018 | ​ | 2017 | ​ | Prior | ​ | Total
Commercial construction |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Risk rating: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Pass | ​ | $ | 1,262 | ​ | $ | 61,092 | ​ | $ | 29,027 | ​ | $ | 26,083 | ​ | $ | — | ​ | $ | — | ​ | $ | 117,464
Special mention | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Substandard | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Total | ​ | $ | 1,262 | ​ | $ | 61,092 | ​ | $ | 29,027 | ​ | $ | 26,083 | ​ | $ | — | ​ | $ | — | ​ | $ | 117,464
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial real estate owner occupied | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Risk rating: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Pass | ​ | $ | 915 | ​ | $ | 14,931 | ​ | $ | 34,446 | ​ | $ | 30,661 | ​ | $ | 21,587 | ​ | $ | 118,206 | ​ | $ | 220,746
Special mention | ​ |  | — | ​ |  | — | ​ |  | 780 | ​ |  | — | ​ |  | — | ​ |  | 1,102 | ​ |  | 1,882
Substandard | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 262 | ​ |  | 262 | ​ |  | 10,319 | ​ |  | 10,843
Doubtful | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 188 | ​ | ​ | ​ | ​ | ​ | 188 | ​ | ​ | 376
Total | ​ | $ | 915 | ​ | $ | 14,931 | ​ | $ | 35,226 | ​ | $ | 31,111 | ​ | $ | 21,849 | ​ | $ | 129,815 | ​ | $ | 233,847
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial real estate non-owner occupied | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Risk rating: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Pass | ​ | $ | 36,535 | ​ | $ | 153,240 | ​ | $ | 121,209 | ​ | $ | 42,460 | ​ | $ | 155,787 | ​ | $ | 218,391 | ​ | $ | 727,622
Special mention | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 118 | ​ |  | — | ​ |  | 1,779 | ​ |  | 1,897
Substandard | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 168 | ​ |  | 168 | ​ |  | 3,463 | ​ |  | 3,799
Doubtful | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 189 | ​ | ​ | 189
Total | ​ | $ | 36,535 | ​ | $ | 153,240 | ​ | $ | 121,209 | ​ | $ | 42,746 | ​ | $ | 155,955 | ​ | $ | 223,822 | ​ | $ | 733,507
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tax exempt | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Risk rating: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Pass | ​ | $ | 678 | ​ | $ | 1,845 | ​ | $ | 1,131 | ​ | $ | 14,840 | ​ | $ | 5,470 | ​ | $ | 22,577 | ​ | $ | 46,541
Special mention | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Substandard | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Total | ​ | $ | 678 | ​ | $ | 1,845 | ​ | $ | 1,131 | ​ | $ | 14,840 | ​ | $ | 5,470 | ​ | $ | 22,577 | ​ | $ | 46,541
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Risk rating: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Pass | ​ | $ | 59,576 | ​ | $ | 87,130 | ​ | $ | 41,814 | ​ | $ | 19,119 | ​ | $ | 64,289 | ​ | $ | 80,963 | ​ | $ | 352,891
Special mention | ​ |  | 196 | ​ |  | 351 | ​ |  | 844 | ​ |  | 744 | ​ |  | 2,683 | ​ |  | 1,150 | ​ |  | 5,969
Substandard | ​ |  | — | ​ |  | — | ​ |  | 611 | ​ |  | 15,220 | ​ |  | 88 | ​ |  | 1,039 | ​ |  | 16,958
Doubtful | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 131 | ​ | ​ | 445 | ​ | ​ | 576
Total | ​ | $ | 59,772 | ​ | $ | 87,481 | ​ | $ | 43,269 | ​ | $ | 35,083 | ​ | $ | 67,192 | ​ | $ | 83,598 | ​ | $ | 376,395
(continued)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) | ​ | 2021 | ​ | 2020 | ​ | 2019 | ​ | 2018 | ​ | 2017 | ​ | Prior | ​ | Total
Residential real estate |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Performing | ​ | $ | 36,563 | ​ | $ | 132,520 | ​ | $ | 114,920 | ​ | $ | 86,017 | ​ | $ | 85,719 | ​ | $ | 475,246 | ​ | $ | 930,985
Nonperforming | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 299 | ​ |  | 274 | ​ |  | 8,569 | ​ |  | 9,142
Total | ​ | $ | 36,563 | ​ | $ | 132,520 | ​ | $ | 114,920 | ​ | $ | 86,316 | ​ | $ | 85,993 | ​ | $ | 483,815 | ​ | $ | 940,127
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Home equity | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Performing | ​ | $ | 2,137 | ​ | $ | 11,009 | ​ | $ | 11,783 | ​ | $ | 8,800 | ​ | $ | 8,118 | ​ | $ | 50,434 | ​ | $ | 92,281
Nonperforming | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 65 | ​ |  | 1,279 | ​ |  | 1,344
Total | ​ | $ | 2,137 | ​ | $ | 11,009 | ​ | $ | 11,783 | ​ | $ | 8,800 | ​ | $ | 8,183 | ​ | $ | 51,713 | ​ | $ | 93,625
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer other | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Performing | ​ | $ | 1,030 | ​ | $ | 2,928 | ​ | $ | 1,552 | ​ | $ | 1,013 | ​ | $ | 420 | ​ | $ | 2,605 | ​ | $ | 9,548
Nonperforming | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 10 | ​ |  | 10
Total | ​ | $ | 1,030 | ​ | $ | 2,928 | ​ | $ | 1,552 | ​ | $ | 1,013 | ​ | $ | 420 | ​ | $ | 2,615 | ​ | $ | 9,558
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Loans | ​ | $ | 138,893 | ​ | $ | 465,046 | ​ | $ | 358,117 | ​ | $ | 245,992 | ​ | $ | 345,062 | ​ | $ | 997,954 | ​ | $ | 2,551,064
​ The following table summarizes credit risk exposure indicators by portfolio segment, under the incurred loss methodology, as of the period indicated: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2020
​ | ​ | Commercial | ​ | Commercial | ​ | Residential | ​ |  | ​ | ​ |  | ​
​ | ​ | Real Estate | ​ | and Industrial | ​ | Real Estate | ​ | Consumer | ​ | Total
Grade: |  | ​ |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Pass |  | $ | 1,053,773 | ​ | $ | 422,016 | ​ | $ | — | ​ | $ | — | ​ | $ | 1,475,789
Performing | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 914,749 | ​ | ​ | 112,190 | ​ | ​ | 1,026,939
Special mention |  | ​ | 6,075 | ​ | ​ | 2,771 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 8,846
Substandard |  | ​ | 22,267 | ​ | ​ | 15,180 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 37,447
Doubtful |  | ​ | 2,265 | ​ | ​ | 1,100 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,365
Loss |  | ​ | 1 | ​ | ​ | 2 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3
Non-performing | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 9,142 | ​ | ​ | 1,354 | ​ | ​ | 10,496
Total |  | $ | 1,084,381 | ​ | $ | 441,069 | ​ | $ | 923,891 | ​ | $ | 113,544 | ​ | $ | 2,562,885
Summary of Past Due Loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2021
(in thousands) |  | 30-59 |  | 60-89 |  | 90+ |  | Total Past Due |  | Current |  | Total Loans
Commercial construction | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 117,464 | ​ | $ | 117,464
Commercial real estate owner occupied | ​ |  | 10 | ​ |  | — | ​ |  | 331 | ​ |  | 341 | ​ |  | 233,506 | ​ |  | 233,847
Commercial real estate non-owner occupied | ​ |  | 644 | ​ |  | 179 | ​ |  | 317 | ​ |  | 1,140 | ​ |  | 732,367 | ​ |  | 733,507
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 46,541 | ​ |  | 46,541
Commercial and industrial | ​ |  | 364 | ​ |  | — | ​ |  | 399 | ​ |  | 763 | ​ |  | 375,632 | ​ |  | 376,395
Residential real estate | ​ |  | 7,815 | ​ |  | 1,345 | ​ |  | 3,194 | ​ |  | 12,354 | ​ |  | 927,773 | ​ |  | 940,127
Home equity | ​ |  | 399 | ​ |  | 198 | ​ |  | 429 | ​ |  | 1,026 | ​ |  | 92,599 | ​ |  | 93,625
Consumer other | ​ |  | 4 | ​ |  | — | ​ |  | 100 | ​ |  | 104 | ​ |  | 9,454 | ​ |  | 9,558
Total | ​ | $ | 9,236 | ​ | $ | 1,722 | ​ | $ | 4,770 | ​ | $ | 15,728 | ​ | $ | 2,535,336 | ​ | $ | 2,551,064
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
(in thousands) |  | 30-59 |  | 60-89 |  | 90+ |  | Total Past Due |  | Current |  | Total Loans
Commercial construction | ​ | $ | 74 | ​ | $ | — | ​ | $ | 1 | ​ | $ | 75 | ​ | $ | 117,807 | ​ | $ | 117,882
Commercial real estate owner occupied | ​ |  | 1,309 | ​ |  | 464 | ​ |  | 438 | ​ |  | 2,211 | ​ |  | 217,006 | ​ |  | 219,217
Commercial real estate non-owner occupied | ​ |  | 503 | ​ |  | 674 | ​ |  | 624 | ​ |  | 1,801 | ​ |  | 714,975 | ​ |  | 716,776
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 47,862 | ​ |  | 47,862
Commercial and industrial | ​ |  | 161 | ​ |  | — | ​ |  | 193 | ​ |  | 354 | ​ |  | 355,330 | ​ |  | 355,684
Residential real estate | ​ |  | 9,178 | ​ |  | 2,511 | ​ |  | 3,200 | ​ |  | 14,889 | ​ |  | 980,327 | ​ |  | 995,216
Home equity | ​ |  | 1,062 | ​ |  | 614 | ​ |  | 375 | ​ |  | 2,051 | ​ |  | 98,045 | ​ |  | 100,096
Consumer other | ​ |  | 20 | ​ |  | — | ​ |  | 2 | ​ |  | 22 | ​ |  | 10,130 | ​ |  | 10,152
Total | ​ | $ | 12,307 | ​ | $ | 4,263 | ​ | $ | 4,833 | ​ | $ | 21,403 | ​ | $ | 2,541,482 | ​ | $ | 2,562,885
Summary of Information Pertaining to Non-Accrual Loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2021
​ | ​ | ​ | ​ | ​ | Nonaccrual With No | ​ | 90+ Days Past
(in thousands) |  | Nonaccrual |  | Related Allowance |  | Due and Accruing
Commercial construction | ​ | $ | — | ​ | $ | — | ​ | $ | —
Commercial real estate owner occupied | ​ |  | 1,576 | ​ |  | 895 | ​ |  | —
Commercial real estate non-owner occupied | ​ |  | 930 | ​ |  | 742 | ​ |  | 50
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | —
Commercial and industrial | ​ |  | 1,067 | ​ |  | 641 | ​ |  | 15
Residential real estate | ​ |  | 9,142 | ​ |  | 3,405 | ​ |  | 24
Home equity | ​ |  | 1,344 | ​ |  | 352 | ​ |  | —
Consumer other | ​ |  | 10 | ​ |  | — | ​ |  | 100
Total | ​ | $ | 14,069 | ​ | $ | 6,035 | ​ | $ | 189
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
​ | ​ | ​ | ​ | ​ | Nonaccrual With No | ​ | 90+ Days Past
(in thousands) |  | Nonaccrual |  | Related Allowance |  | Due and Accruing
Commercial construction | ​ | $ | 258 | ​ | $ | — | ​ | $ | —
Commercial real estate owner occupied | ​ |  | 2,400 | ​ |  | 929 | ​ |  | —
Commercial real estate non-owner occupied | ​ |  | 383 | ​ |  | 118 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | —
Commercial and industrial | ​ |  | 1,223 | ​ |  | 1,065 | ​ |  | —
Residential real estate | ​ |  | 5,883 | ​ |  | 4,948 | ​ |  | —
Home equity | ​ |  | 1,345 | ​ |  | 1,346 | ​ |  | 267
Consumer other | ​ |  | 58 | ​ |  | 58 | ​ |  | —
Total | ​ | $ | 11,550 | ​ | $ | 8,464 | ​ | $ | 267
Schedule of amortized cost basis of collateral-dependent loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2021 | ​ | December 31, 2020
(in thousands) |  | Real Estate |  | Other |  | Real Estate |  | Other
Commercial construction | ​ | $ | — | ​ | $ | — | ​ | $ | 259 | ​ | $ | —
Commercial real estate owner occupied | ​ |  | 1,576 | ​ |  | — | ​ |  | 3,441 | ​ |  | —
Commercial real estate non-owner occupied | ​ |  | 930 | ​ |  | — | ​ |  | 383 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Commercial and industrial | ​ |  | 564 | ​ |  | 503 | ​ |  | 625 | ​ |  | 607
Residential real estate | ​ |  | 9,142 | ​ |  | — | ​ |  | 7,432 | ​ |  | —
Home equity | ​ |  | 1,344 | ​ |  | — | ​ |  | 1,493 | ​ |  | —
Consumer other | ​ |  | 10 | ​ |  | — | ​ |  | 60 | ​ |  | —
Total | ​ | $ | 13,566 | ​ | $ | 503 | ​ | $ | 13,693 | ​ | $ | 607
Summary of Impaired Loans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2020
​ | ​ | Recorded |  | Unpaid Principal |  | Related |  | Average Recorded |  | Interest
(in thousands) | ​ | Investment | ​ | Balance | ​ | Allowance | ​ | Investment | ​ | Income Recognized
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 2,001 | ​ |  | 2,047 | ​ |  | — | ​ |  | 1,610 | ​ |  | —
Commercial | ​ |  | 1,095 | ​ |  | 1,254 | ​ |  | — | ​ |  | 1,140 | ​ |  | 4
Agricultural | ​ |  | 361 | ​ |  | 150 | ​ |  | — | ​ |  | 114 | ​ |  | 2
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 2,745 | ​ |  | 3,165 | ​ |  | — | ​ |  | 1,077 | ​ |  | 17
Home equity | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ |  | 258 | ​ |  | 258 | ​ |  | 205 | ​ |  | 203 | ​ |  | —
Other commercial real estate | ​ |  | 1,963 | ​ |  | 2,108 | ​ |  | 1,038 | ​ |  | 1,973 | ​ |  | 17
Commercial | ​ |  | 282 | ​ |  | 289 | ​ |  | 164 | ​ |  | 73 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 887 | ​ |  | 944 | ​ |  | 106 | ​ |  | 1,865 | ​ |  | 37
Home equity | ​ |  | 13 | ​ |  | 13 | ​ |  | — | ​ |  | 12 | ​ |  | 1
Other consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial real estate | ​ |  | 4,222 | ​ |  | 4,413 | ​ |  | 1,243 | ​ |  | 3,786 | ​ |  | 17
Commercial and industrial | ​ |  | 1,738 | ​ |  | 1,693 | ​ |  | 164 | ​ |  | 1,327 | ​ |  | 6
Residential real estate | ​ |  | 3,632 | ​ |  | 4,109 | ​ |  | 106 | ​ |  | 2,942 | ​ |  | 54
Consumer | ​ |  | 13 | ​ |  | 13 | ​ |  | — | ​ |  | 12 | ​ |  | 1
Total impaired loans | ​ | $ | 9,605 | ​ | $ | 10,228 | ​ | $ | 1,513 | ​ | $ | 8,067 | ​ | $ | 78
Schedule of Recorded Investment and Number of Modifications for TDRs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2021
​ | ​ | ​ | ​ | Pre-Modification | ​ | Post-Modification | ​ | ​ | ​
​ | ​ | Number of | ​ | Outstanding | ​ | Outstanding | ​ | ​ | ​
(in thousands) |  | Modifications |  | Balance |  | Balance |  | Reserve
Commercial construction | ​ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Commercial real estate owner occupied |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Commercial real estate non-owner occupied |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Tax exempt |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Commercial and industrial |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Home equity |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Consumer other |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Total |  | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, 2020
​ | ​ | ​ | ​ | Pre-Modification | ​ | Post-Modification | ​ | ​ | ​
​ | ​ | Number of | ​ | Outstanding | ​ | Outstanding | ​ | ​ | ​
(in thousands) |  | Modifications |  | Balance |  | Balance |  | Reserve
Commercial construction | ​ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Commercial real estate owner occupied |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Commercial real estate non-owner occupied |  | 1 | ​ |  | 54 | ​ |  | 259 | ​ |  | —
Tax exempt |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Commercial and industrial |  | 3 | ​ |  | 41 | ​ |  | 208 | ​ |  | —
Residential real estate |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Home equity |  | 1 | ​ |  | 26 | ​ |  | 25 | ​ |  | —
Consumer other |  | 1 | ​ |  | 9 | ​ |  | 9 | ​ |  | —
Total |  | 6 | ​ | $ | 130 | ​ | $ | 501 | ​ | $ | —
​
Summary of Loan Concessions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2021 | ​ | March 31, 2020
​ |  | ​ |  | Post-Modification |  | ​ |  | Post-Modification
​ | ​ | Number of | ​ | Outstanding | ​ | Number of | ​ | Outstanding
(in thousands) | ​ | Modifications | ​ | Balance | ​ | Modifications | ​ | Balance
Interest rate, forbearance and maturity concession |  | — | ​ | $ | — |  | 4 | ​ | $ | 467
Forbearance and interest only payments |  | — | ​ |  | — |  | 1 | ​ |  | 25
Maturity concession |  | — | ​ |  | — |  | 1 | ​ |  | 9
Total |  | — | ​ | $ | — |  | 6 | ​ | $ | 501
Unfunded Loan Commitment |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Schedule of Activity in the Allowance for Loan Losses | ​
​ | ​ | ​ | ​
(in thousands) |  | 2021
Balance at December 31, 2020 | ​ | $ | 359
Impact of CECL adoption | ​ | ​ | 1,616
Provision for credit losses | ​ |  | (156)
Balance at March 31, 2021 | ​ | $ | 1,819
​
​ | ​ | ​ | ​
(in thousands) |  | 2020
Balance at December 31, 2019 | ​ | $ | 314
Provision for credit losses | ​ |  | 45
Balance at December 31, 2020 | ​ | $ | 359

X
- Definition Tabular disclosure of the amortized cost basis of collateral-dependent loans. + References No definition available. + Details
Name: | bhb_AmortizedCostBasisOfCollateralDependentLoansTableTextBlock
Namespace Prefix: | bhb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of loan concessions. + References No definition available. + Details
Name: | bhb_LoanConcessionsTableTextBlock
Namespace Prefix: | bhb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of unamortized net loan origination costs and discount (premium) included in accounts, notes, loans, and financing receivable at balance sheet date. + References No definition available. + Details
Name: | bhb_ScheduleOfUnamortizedNetCostsAndPremiumsWithinAccountsNotesLoansAndFinancingReceivableTableTextBlock
Namespace Prefix: | bhb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
Name: | us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
Name: | us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_UnfundedLoanCommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |