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LOANS | 12 Months Ended
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Dec. 31, 2020
Receivables [Abstract] |
LOANS | NOTE 3. LOANS The Company’s loan portfolio is comprised of the following segments: commercial real estate, commercial and industrial, residential real estate, and consumer loans. Commercial real estate loans include multi-family, commercial construction and land development, and other commercial real estate classes. Commercial and industrial loans include loans to commercial and agricultural businesses, and tax exempt entities. Residential real estate loans consist of mortgages for 1-to-4 family housing. Consumer loans include home equity loans, auto and other installment loans. The Company’s lending activities are principally conducted in Maine, New Hampshire, and Vermont. Total loans include business activity loans and acquired loans. Acquired loans are those loans previously acquired from a business combination. The following is a summary of total loans: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 | ​ | December 31, 2019
​ | ​ | Business | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Business | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Activities | ​ | Acquired | ​ | ​ | ​ | ​ | Activities | ​ | Acquired | ​ | ​ | ​
(in thousands) |  | Loans |  | Loans |  | Total |  | Loans |  | Loans |  | Total
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | 129,255 | ​ | $ | 1,868 | ​ | $ | 131,123 | ​ | $ | 31,387 | ​ | $ | 2,903 | ​ | $ | 34,290
Other commercial real estate | ​ |  | 765,862 | ​ |  | 187,396 | ​ |  | 953,258 | ​ |  | 666,051 | ​ |  | 230,320 | ​ |  | 896,371
Total commercial real estate | ​ |  | 895,117 | ​ |  | 189,264 | ​ |  | 1,084,381 | ​ |  | 697,438 | ​ |  | 233,223 | ​ |  | 930,661
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  | ​
Commercial | ​ |  | 315,005 | ​ |  | 45,683 | ​ |  | 360,688 | ​ |  | 239,692 | ​ |  | 59,072 | ​ |  | 298,764
Agricultural | ​ |  | 16,797 | ​ |  | 153 | ​ |  | 16,950 | ​ |  | 20,018 | ​ |  | 206 | ​ |  | 20,224
Tax exempt | ​ |  | 39,429 | ​ |  | 24,002 | ​ |  | 63,431 | ​ |  | 66,860 | ​ |  | 37,443 | ​ |  | 104,303
Total commercial and industrial | ​ |  | 371,231 | ​ |  | 69,838 | ​ |  | 441,069 | ​ |  | 326,570 | ​ |  | 96,721 | ​ |  | 423,291
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 1,266,348 | ​ |  | 259,102 | ​ |  | 1,525,450 | ​ |  | 1,024,008 | ​ |  | 329,944 | ​ |  | 1,353,952
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  | ​
Residential mortgages | ​ |  | 633,390 | ​ |  | 290,501 | ​ |  | 923,891 | ​ |  | 734,188 | ​ |  | 411,170 | ​ |  | 1,145,358
Total residential real estate | ​ |  | 633,390 | ​ |  | 290,501 | ​ |  | 923,891 | ​ |  | 734,188 | ​ |  | 411,170 | ​ |  | 1,145,358
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  | ​
Home equity | ​ |  | 55,092 | ​ |  | 47,372 | ​ |  | 102,464 | ​ |  | 59,368 | ​ |  | 63,033 | ​ |  | 122,401
Other consumer | ​ |  | 9,924 | ​ |  | 1,156 | ​ |  | 11,080 | ​ |  | 11,167 | ​ |  | 1,715 | ​ |  | 12,882
Total consumer | ​ |  | 65,016 | ​ |  | 48,528 | ​ |  | 113,544 | ​ |  | 70,535 | ​ |  | 64,748 | ​ |  | 135,283
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 1,964,754 | ​ | $ | 598,131 | ​ | $ | 2,562,885 | ​ | $ | 1,828,731 | ​ | $ | 805,862 | ​ | $ | 2,634,593
​ Total unamortized net costs and premiums included in the year-end total for business activity loans were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, 2020 |  | December 31, 2019
Unamortized net loan origination costs | ​ | $ | 5,157 | ​ | $ | 3,603
Unamortized net premium on purchased loans | ​ |  | (85) | ​ |  | (134)
Total unamortized net costs and premiums | ​ | $ | 5,072 | ​ | $ | 3,469
​ For the year ended December 31, 2020, the Company had pledged loans with a collateral value totaling $71.9 million to the Federal Reserve Bank of Boston for certain borrowing arrangements. The Company also pledged residential first mortgage loans, home equity loans and certain commercial loans with collateral value totaling $910.5 million for FHLB borrowings for the year ended December 31, 2020. (See Note 8 - Borrowed Funds of the Company’s Consolidated Financial Statements.) The carrying amount of the acquired loans at December 31, 2020 totaled $598.1 million. A subset of these loans was determined to have evidence of credit deterioration at the acquisition date, which is accounted for in accordance with ASC 310-30. These purchased credit-impaired loans presently maintain a carrying value of $12.7 million (and a note balance of $16.3 million). These loans are evaluated for impairment through the periodic reforecasting of expected cash flows. Loans considered not impaired at acquisition date had a carrying amount of $585.4 million. The following table summarizes activity in the accretable yield for the acquired loan portfolio that falls under the purview of ASC 310-30, Accounting for Certain Loans or Debt Securities Acquired in a Transfer: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Twelve Months Ended December 31,
(in thousands) |  | 2020 |  | 2019
Balance at beginning of period | ​ | $ | 7,367 | ​ | $ | 4,377
Acquisitions | ​ | ​ | — | ​ | ​ | 4,391
Net reclassifications from (to) nonaccretable difference | ​ |  | 1,146 | ​ |  | 541
Accretion | ​ |  | (2,957) | ​ |  | (1,942)
Balance at end of period | ​ | $ | 5,556 | ​ | $ | 7,367
​ The following is a summary of past due loans at December 31, 2020 and December 31, 2019: Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 90 Days or | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Past Due >
​ |  | 30-59 Days |  | 60-89 Days |  | Greater |  | Total Past |  | ​ | ​ |  | ​ | ​ |  | 90 days and
(in thousands) | ​ | Past Due | ​ | Past Due | ​ | Past Due | ​ | Due | ​ | Current | ​ | Total Loans | ​ | Accruing
December 31, 2020 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | 1 | ​ | $ | 1 | ​ | $ | 129,254 | ​ | $ | 129,255 | ​ | $ | —
Other commercial real estate | ​ |  | 454 | ​ |  | 464 | ​ |  | 850 | ​ |  | 1,768 | ​ |  | 764,094 | ​ |  | 765,862 | ​ |  | —
Total commercial real estate | ​ |  | 454 | ​ |  | 464 | ​ |  | 851 | ​ |  | 1,769 | ​ |  | 893,348 | ​ |  | 895,117 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial | ​ |  | 5 | ​ |  | 310 | ​ |  | 157 | ​ |  | 472 | ​ |  | 314,533 | ​ |  | 315,005 | ​ |  | —
Agricultural | ​ |  | 7 | ​ |  | — | ​ |  | 36 | ​ |  | 43 | ​ |  | 16,754 | ​ |  | 16,797 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 39,429 | ​ |  | 39,429 | ​ |  | —
Total commercial and industrial | ​ |  | 12 | ​ |  | 310 | ​ |  | 193 | ​ |  | 515 | ​ |  | 370,716 | ​ |  | 371,231 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 466 | ​ |  | 774 | ​ |  | 1,044 | ​ |  | 2,284 | ​ |  | 1,264,064 | ​ |  | 1,266,348 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential mortgages | ​ |  | 6,219 | ​ |  | 1,767 | ​ |  | 973 | ​ |  | 8,959 | ​ |  | 624,431 | ​ |  | 633,390 | ​ |  | —
Total residential real estate | ​ |  | 6,219 | ​ |  | 1,767 | ​ |  | 973 | ​ |  | 8,959 | ​ |  | 624,431 | ​ |  | 633,390 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Home equity | ​ |  | 95 | ​ |  | 137 | ​ |  | 170 | ​ |  | 402 | ​ |  | 54,690 | ​ |  | 55,092 | ​ |  | 3
Other consumer | ​ |  | 20 | ​ |  | — | ​ |  | 2 | ​ |  | 22 | ​ |  | 9,902 | ​ |  | 9,924 | ​ |  | —
Total consumer | ​ |  | 115 | ​ |  | 137 | ​ |  | 172 | ​ |  | 424 | ​ |  | 64,592 | ​ |  | 65,016 | ​ |  | 3
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 6,800 | ​ | $ | 2,678 | ​ | $ | 2,189 | ​ | $ | 11,667 | ​ | $ | 1,953,087 | ​ | $ | 1,964,754 | ​ | $ | 3
​ ​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | 90 Days or |  | ​ | ​ |  | Acquired |  | ​ | ​ |  | Past Due >
​ | ​ | 30-59 Days | ​ | 60-89 Days | ​ | Greater | ​ | Total Past | ​ | Credit | ​ | ​ | ​ | ​ | 90 days and
(in thousands) | ​ | Past Due | ​ | Past Due | ​ | Past Due | ​ | Due |  | Impaired | ​ | Total Loans |  | Accruing
December 31, 2020 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 74 | ​ | $ | 1,868 | ​ | $ | —
Other commercial real estate | ​ |  | 2,360 | ​ |  | 105 | ​ |  | 695 | ​ |  | 3,160 | ​ |  | 6,359 | ​ |  | 187,396 | ​ |  | —
Total commercial real estate | ​ |  | 2,360 | ​ |  | 105 | ​ |  | 695 | ​ |  | 3,160 | ​ |  | 6,433 | ​ |  | 189,264 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial | ​ |  | 184 | ​ |  | — | ​ |  | 131 | ​ |  | 315 | ​ |  | 870 | ​ |  | 45,683 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 153 | ​ |  | 153 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 24,002 | ​ |  | —
Total commercial and industrial | ​ |  | 184 | ​ |  | — | ​ |  | 131 | ​ |  | 315 | ​ |  | 1,023 | ​ |  | 69,838 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 2,544 | ​ |  | 105 | ​ |  | 826 | ​ |  | 3,475 | ​ |  | 7,456 | ​ |  | 259,102 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Residential mortgages | ​ |  | 785 | ​ |  | 579 | ​ |  | 1,155 | ​ |  | 2,519 | ​ |  | 4,532 | ​ |  | 290,501 | ​ |  | 121
Total residential real estate | ​ |  | 785 | ​ |  | 579 | ​ |  | 1,155 | ​ |  | 2,519 | ​ |  | 4,532 | ​ |  | 290,501 | ​ |  | 121
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Home equity | ​ |  | 971 | ​ |  | 486 | ​ |  | 101 | ​ |  | 1,558 | ​ |  | 659 | ​ |  | 47,372 | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 39 | ​ |  | 1,156 | ​ |  | —
Total consumer | ​ |  | 971 | ​ |  | 486 | ​ |  | 101 | ​ |  | 1,558 | ​ |  | 698 | ​ |  | 48,528 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 4,300 | ​ | $ | 1,170 | ​ | $ | 2,082 | ​ | $ | 7,552 | ​ | $ | 12,686 | ​ | $ | 598,131 | ​ | $ | 121
​ Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | 90 Days or | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Past Due >
​ |  | 30-59 Days |  | 60-89 Days |  | Greater |  | Total Past |  | ​ | ​ |  | ​ | ​ |  | 90 days and
(in thousands) | ​ | Past Due | ​ | Past Due | ​ | Past Due | ​ | Due | ​ | Current | ​ | Total Loans | ​ | Accruing
December 31, 2019 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | 205 | ​ | $ | 53 | ​ | $ | — | ​ | $ | 258 | ​ | $ | 31,129 | ​ | $ | 31,387 | ​ | $ | —
Other commercial real estate | ​ |  | 40 | ​ |  | 1,534 | ​ |  | 1,810 | ​ |  | 3,384 | ​ |  | 662,667 | ​ |  | 666,051 | ​ |  | —
Total commercial real estate | ​ |  | 245 | ​ |  | 1,587 | ​ |  | 1,810 | ​ |  | 3,642 | ​ |  | 693,796 | ​ |  | 697,438 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial | ​ |  | 452 | ​ |  | 50 | ​ |  | 894 | ​ |  | 1,396 | ​ |  | 238,296 | ​ |  | 239,692 | ​ |  | —
Agricultural | ​ |  | 62 | ​ |  | 34 | ​ |  | 96 | ​ |  | 192 | ​ |  | 19,826 | ​ |  | 20,018 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 66,860 | ​ |  | 66,860 | ​ |  | —
Total commercial and industrial | ​ |  | 514 | ​ |  | 84 | ​ |  | 990 | ​ |  | 1,588 | ​ |  | 324,982 | ​ |  | 326,570 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 759 | ​ |  | 1,671 | ​ |  | 2,800 | ​ |  | 5,230 | ​ |  | 1,018,778 | ​ |  | 1,024,008 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential mortgages | ​ |  | 7,293 | ​ |  | 1,243 | ​ |  | 668 | ​ |  | 9,204 | ​ |  | 724,984 | ​ |  | 734,188 | ​ |  | —
Total residential real estate | ​ |  | 7,293 | ​ |  | 1,243 | ​ |  | 668 | ​ |  | 9,204 | ​ |  | 724,984 | ​ |  | 734,188 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Home equity | ​ |  | 597 | ​ |  | 43 | ​ |  | 429 | ​ |  | 1,069 | ​ |  | 58,299 | ​ |  | 59,368 | ​ |  | 50
Other consumer | ​ |  | 36 | ​ |  | 12 | ​ |  | — | ​ |  | 48 | ​ |  | 11,119 | ​ |  | 11,167 | ​ |  | —
Total consumer | ​ |  | 633 | ​ |  | 55 | ​ |  | 429 | ​ |  | 1,117 | ​ |  | 69,418 | ​ |  | 70,535 | ​ |  | 50
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 8,685 | ​ | $ | 2,969 | ​ | $ | 3,897 | ​ | $ | 15,551 | ​ | $ | 1,813,180 | ​ | $ | 1,828,731 | ​ | $ | 50
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | ​ | ​ |  | 90 Days or |  | ​ | ​ |  | Acquired |  | ​ | ​ |  | Past Due >
​ | ​ | 30-59 Days | ​ | 60-89 Days | ​ | Greater | ​ | Total Past | ​ | Credit | ​ | ​ | ​ | ​ | 90 days and
(in thousands) | ​ | Past Due | ​ | Past Due | ​ | Past Due | ​ | Due | ​ | Impaired | ​ | Total Loans | ​ | Accruing
December 31, 2019 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | 12 | ​ | $ | — | ​ | $ | 12 | ​ | $ | 384 | ​ | $ | 2,903 | ​ | $ | —
Other commercial real estate | ​ |  | 2,029 | ​ |  | 245 | ​ |  | 231 | ​ |  | 2,505 | ​ |  | 8,289 | ​ |  | 230,320 | ​ |  | —
Total commercial real estate | ​ |  | 2,029 | ​ |  | 257 | ​ |  | 231 | ​ |  | 2,517 | ​ |  | 8,673 | ​ |  | 233,223 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial | ​ |  | 440 | ​ |  | 335 | ​ |  | 140 | ​ |  | 915 | ​ |  | 2,723 | ​ |  | 59,072 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 173 | ​ |  | 206 | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 36 | ​ |  | 37,443 | ​ |  | —
Total commercial and industrial | ​ |  | 440 | ​ |  | 335 | ​ |  | 140 | ​ |  | 915 | ​ |  | 2,932 | ​ |  | 96,721 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 2,469 | ​ |  | 592 | ​ |  | 371 | ​ |  | 3,432 | ​ |  | 11,605 | ​ |  | 329,944 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential mortgages | ​ |  | 3,185 | ​ |  | 864 | ​ |  | 1,015 | ​ |  | 5,064 | ​ |  | 5,591 | ​ |  | 411,170 | ​ |  | —
Total residential real estate | ​ |  | 3,185 | ​ |  | 864 | ​ |  | 1,015 | ​ |  | 5,064 | ​ |  | 5,591 | ​ |  | 411,170 | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Home equity | ​ |  | 208 | ​ |  | 548 | ​ |  | 217 | ​ |  | 973 | ​ |  | 1,291 | ​ |  | 63,033 | ​ |  | 217
Other consumer | ​ |  | 2 | ​ |  | 9 | ​ |  | — | ​ |  | 11 | ​ |  | 66 | ​ |  | 1,715 | ​ |  | —
Total consumer | ​ |  | 210 | ​ |  | 557 | ​ |  | 217 | ​ |  | 984 | ​ |  | 1,357 | ​ |  | 64,748 | ​ |  | 217
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 5,864 | ​ | $ | 2,013 | ​ | $ | 1,603 | ​ | $ | 9,480 | ​ | $ | 18,553 | ​ | $ | 805,862 | ​ | $ | 217
​ Non-Accrual Loans The following is summary information pertaining to non-accrual loans at December 31, 2020 and December 31, 2019: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 | ​ | December 31, 2019
​ |  | Business |  | ​ | ​ |  | ​ | ​ |  | Business |  | ​ | ​ |  | ​ | ​
​ | ​ | Activities | ​ | Acquired | ​ | ​ | ​ | ​ | Activities | ​ | Acquired | ​ | ​ | ​
(in thousands) |  | Loans |  | Loans | ​ | Total |  | Loans |  | Loans | ​ | Total
Commercial real estate: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | 190 | ​ | $ | — | ​ | $ | 190 | ​ | $ | 258 | ​ | $ | — | ​ | $ | 258
Other commercial real estate | ​ |  | 1,404 | ​ |  | 2,657 | ​ |  | 4,061 | ​ |  | 2,888 | ​ |  | 343 | ​ |  | 3,231
Total commercial real estate | ​ |  | 1,594 | ​ |  | 2,657 | ​ |  | 4,251 | ​ |  | 3,146 | ​ |  | 343 | ​ |  | 3,489
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial and industrial: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Commercial | ​ |  | 869 | ​ |  | 375 | ​ |  | 1,244 | ​ |  | 932 | ​ |  | 626 | ​ |  | 1,558
Agricultural | ​ |  | 222 | ​ |  | — | ​ |  | 222 | ​ |  | 278 | ​ |  | — | ​ |  | 278
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Total commercial and industrial | ​ |  | 1,091 | ​ |  | 375 | ​ |  | 1,466 | ​ |  | 1,210 | ​ |  | 626 | ​ |  | 1,836
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total commercial loans | ​ |  | 2,685 | ​ |  | 3,032 | ​ |  | 5,717 | ​ |  | 4,356 | ​ |  | 969 | ​ |  | 5,325
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential real estate: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Residential mortgages | ​ |  | 3,301 | ​ |  | 2,428 | ​ |  | 5,729 | ​ |  | 3,362 | ​ |  | 1,973 | ​ |  | 5,335
Total residential real estate | ​ |  | 3,301 | ​ |  | 2,428 | ​ |  | 5,729 | ​ |  | 3,362 | ​ |  | 1,973 | ​ |  | 5,335
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consumer: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Home equity | ​ |  | 438 | ​ |  | 291 | ​ |  | 729 | ​ |  | 615 | ​ |  | 254 | ​ |  | 869
Other consumer | ​ |  | 13 | ​ |  | — | ​ |  | 13 | ​ |  | 21 | ​ |  | — | ​ |  | 21
Total consumer | ​ |  | 451 | ​ |  | 291 | ​ |  | 742 | ​ |  | 636 | ​ |  | 254 | ​ |  | 890
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total loans | ​ | $ | 6,437 | ​ | $ | 5,751 | ​ | $ | 12,188 | ​ | $ | 8,354 | ​ | $ | 3,196 | ​ | $ | 11,550
​ Loans evaluated for impairment by portfolio segment as of December 31, 2020 and December 31, 2019 were as follows: Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Commercial | ​ | Commercial | ​ | Residential | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | real estate |  | and industrial |  | real estate |  | Consumer |  | Total
December 31, 2020 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Balance at end of period |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Individually evaluated for impairment | ​ | $ | 2,222 | ​ | $ | 997 | ​ | $ | 2,215 | ​ | $ | 12 | ​ | $ | 5,446
Collectively evaluated | ​ |  | 892,895 | ​ |  | 370,234 | ​ |  | 631,175 | ​ |  | 65,004 | ​ |  | 1,959,308
Total | ​ | $ | 895,117 | ​ | $ | 371,231 | ​ | $ | 633,390 | ​ | $ | 65,016 | ​ | $ | 1,964,754
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Commercial |  | Commercial |  | Residential |  | ​ | ​ |  | ​ | ​
(in thousands) | ​ | real estate | ​ | and industrial | ​ | real estate | ​ | Consumer | ​ | Total
December 31, 2020 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Balance at end of period |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Individually evaluated for impairment | ​ | $ | 2,338 | ​ | $ | 294 | ​ | $ | 668 | ​ | $ | — | ​ | $ | 3,300
Purchased credit impaired | ​ |  | 6,433 | ​ |  | 1,023 | ​ |  | 4,532 | ​ |  | 698 | ​ |  | 12,686
Collectively evaluated | ​ |  | 180,493 | ​ |  | 68,521 | ​ |  | 285,301 | ​ |  | 47,830 | ​ |  | 582,145
Total | ​ | $ | 189,264 | ​ | $ | 69,838 | ​ | $ | 290,501 | ​ | $ | 48,528 | ​ | $ | 598,131
​ Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Commercial |  | Commercial |  | Residential |  | ​ | ​ |  | ​ | ​
(in thousands) | ​ | real estate | ​ | and industrial | ​ | real estate | ​ | Consumer | ​ | Total
December 31, 2019 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Balance at end of period |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Individually evaluated for impairment | ​ | $ | 3,964 | ​ | $ | 1,353 | ​ | $ | 2,620 | ​ | $ | 13 | ​ | $ | 7,950
Collectively evaluated | ​ |  | 693,474 | ​ |  | 325,217 | ​ |  | 731,568 | ​ |  | 70,522 | ​ |  | 1,820,781
Total | ​ | $ | 697,438 | ​ | $ | 326,570 | ​ | $ | 734,188 | ​ | $ | 70,535 | ​ | $ | 1,828,731
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Commercial |  | Commercial |  | Residential |  | ​ | ​ |  | ​ | ​
(in thousands) | ​ | real estate | ​ | and industrial | ​ | real estate | ​ | Consumer | ​ | Total
December 31, 2019 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Balance at end of period |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Individually evaluated for impairment | ​ | $ | 258 | ​ | $ | 385 | ​ | $ | 1,032 | ​ | $ | — | ​ | $ | 1,675
Purchased credit impaired | ​ |  | 8,673 | ​ |  | 2,932 | ​ |  | 5,591 | ​ |  | 1,357 | ​ |  | 18,553
Collectively evaluated | ​ |  | 224,292 | ​ |  | 93,404 | ​ |  | 404,547 | ​ |  | 63,391 | ​ |  | 785,634
Total | ​ | $ | 233,223 | ​ | $ | 96,721 | ​ | $ | 411,170 | ​ | $ | 64,748 | ​ | $ | 805,862
​ The following is a summary of impaired loans at December 31, 2020 and December 31, 2019: Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
​ |  | Recorded |  | Unpaid Principal |  | Related
(in thousands) | ​ | Investment |  | Balance | ​ | Allowance
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 748 | ​ |  | 832 | ​ |  | —
Commercial | ​ |  | 851 | ​ |  | 958 | ​ |  | —
Agricultural | ​ |  | 146 | ​ |  | 150 | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 612 | ​ |  | 701 | ​ |  | —
Home equity | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | 189 | ​ | ​ | 199 | ​ | ​ | 139
Other commercial real estate | ​ | ​ | 1,285 | ​ | ​ | 1,356 | ​ | ​ | 227
Commercial | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt loans | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate | ​ | ​ | 1,603 | ​ | ​ | 1,663 | ​ | ​ | 67
Home equity | ​ | ​ | 12 | ​ | ​ | 12 | ​ | ​ | 1
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 2,222 | ​ | ​ | 2,387 | ​ | ​ | 366
Commercial and industrial | ​ |  | 997 | ​ |  | 1,108 | ​ |  | —
Residential real estate | ​ |  | 2,215 | ​ |  | 2,364 | ​ |  | 67
Consumer | ​ |  | 12 | ​ |  | 12 | ​ |  | 1
Total impaired loans | ​ | $ | 5,446 | ​ | $ | 5,871 | ​ | $ | 434
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
​ |  | Recorded |  | Unpaid Principal |  | Related
(in thousands) | ​ | Investment |  | Balance | ​ | Allowance
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 1,567 | ​ |  | 1,595 | ​ |  | —
Commercial | ​ |  | 229 | ​ |  | 332 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 423 | ​ |  | 465 | ​ |  | —
Home equity | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other commercial real estate | ​ | ​ | 771 | ​ | ​ | 791 | ​ | ​ | 290
Commercial | ​ | ​ | 65 | ​ | ​ | 67 | ​ | ​ | 5
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt loans | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate | ​ | ​ | 245 | ​ | ​ | 334 | ​ | ​ | 1
Home equity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 2,338 | ​ | ​ | 2,386 | ​ | ​ | 290
Commercial and industrial | ​ |  | 294 | ​ |  | 399 | ​ |  | 5
Residential real estate | ​ |  | 668 | ​ |  | 799 | ​ |  | 1
Consumer | ​ |  | — | ​ |  | — | ​ |  | —
Total impaired loans | ​ | $ | 3,300 | ​ | $ | 3,584 | ​ | $ | 296
​ Business Activities Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ |  | Recorded |  | Unpaid Principal |  | Related
(in thousands) |  | Investment |  | Balance |  | Allowance
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 1,911 | ​ |  | 1,957 | ​ |  | —
Commercial | ​ |  | 710 | ​ |  | 773 | ​ |  | —
Agricultural | ​ |  | 361 | ​ |  | 361 | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 2,067 | ​ |  | 2,227 | ​ |  | —
Home equity | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | 258 | ​ | ​ | 258 | ​ | ​ | 205
Other commercial real estate | ​ | ​ | 1,795 | ​ | ​ | 1,940 | ​ | ​ | 1,026
Commercial | ​ | ​ | 282 | ​ | ​ | 289 | ​ | ​ | 164
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt loans | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate | ​ | ​ | 553 | ​ | ​ | 590 | ​ | ​ | 57
Home equity | ​ | ​ | 13 | ​ | ​ | 13 | ​ | ​ | —
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 3,964 | ​ | ​ | 4,155 | ​ | ​ | 1,231
Commercial and industrial | ​ |  | 1,353 | ​ |  | 1,423 | ​ | ​ | 164
Residential real estate | ​ |  | 2,620 | ​ |  | 2,817 | ​ |  | 57
Consumer | ​ |  | 13 | ​ |  | 13 | ​ |  | —
Total impaired loans | ​ | $ | 7,950 | ​ | $ | 8,408 | ​ | $ | 1,452
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ |  | Recorded |  | Unpaid Principal |  | Related
(in thousands) |  | Investment |  | Balance |  | Allowance
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 90 | ​ |  | 90 | ​ |  | —
Commercial | ​ |  | 385 | ​ |  | 481 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | —
Tax exempt | ​ |  | — | ​ |  | — | ​ |  | —
Residential mortgages | ​ |  | 678 | ​ |  | 938 | ​ |  | —
Home equity | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other commercial real estate | ​ | ​ | 168 | ​ | ​ | 168 | ​ | ​ | 12
Commercial | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential mortgages | ​ | ​ | 354 | ​ | ​ | 376 | ​ | ​ | 49
Home equity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 258 | ​ | ​ | 258 | ​ | ​ | 12
Commercial and industrial | ​ |  | 385 | ​ |  | 481 | ​ |  | —
Residential real estate | ​ |  | 1,032 | ​ |  | 1,314 | ​ |  | 49
Consumer | ​ |  | — | ​ |  | — | ​ |  | —
Total impaired loans | ​ | $ | 1,675 | ​ | $ | 2,053 | ​ | $ | 61
​ The following is a summary of the average recorded investment and interest income recognized on impaired loans as of December 31, 2020 and December 31, 2019: Business Activities Loan
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2020 | ​ | Year Ended December 31, 2019
​ |  | Average Recorded |  | Interest |  | Average Recorded |  | Interest
(in thousands) |  | Investment |  | Income Recognized |  | Investment |  | Income Recognized
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 392 | ​ |  | — | ​ |  | 5,434 | ​ |  | 55
Commercial | ​ |  | 842 | ​ |  | 4 | ​ |  | 871 | ​ |  | 5
Agricultural | ​ |  | 114 | ​ |  | 2 | ​ |  | — | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 641 | ​ |  | 17 | ​ |  | 2,089 | ​ |  | 47
Home equity | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | 203 | ​ | ​ | — | ​ | ​ | 56 | ​ | ​ | 1
Other commercial real estate | ​ | ​ | 1,295 | ​ | ​ | 14 | ​ | ​ | 1,737 | ​ | ​ | —
Commercial | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 153 | ​ | ​ | —
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt loans | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate | ​ | ​ | 1,616 | ​ | ​ | 37 | ​ | ​ | 540 | ​ | ​ | 7
Home equity | ​ | ​ | 12 | ​ | ​ | 1 | ​ | ​ | 13 | ​ | ​ | —
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 1,890 | ​ | ​ | 14 | ​ | ​ | 7,227 | ​ | ​ | 56
Commercial and industrial | ​ |  | 956 | ​ | ​ | 6 | ​ | ​ | 1,024 | ​ |  | 5
Residential real estate | ​ |  | 2,257 | ​ |  | 54 | ​ | ​ | 2,629 | ​ |  | 54
Consumer | ​ |  | 12 | ​ |  | 1 | ​ | ​ | 13 | ​ |  | —
Total impaired loans | ​ | $ | 5,115 | ​ | $ | 75 | ​ | $ | 10,893 | ​ | $ | 115
​ Acquired Loans
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2020 | ​ | Year Ended December 31, 2019
​ |  | Average Recorded |  | Interest |  | Average Recorded |  | Interest
(in thousands) |  | Investment |  | Income Recognized |  | Investment |  | Income Recognized
With no related allowance: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Construction and land development | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Other commercial real estate | ​ |  | 1,218 | ​ |  | — | ​ |  | 89 | ​ |  | —
Commercial | ​ |  | 298 | ​ |  | — | ​ |  | 429 | ​ |  | —
Agricultural | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Tax exempt loans | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Residential real estate | ​ |  | 436 | ​ |  | — | ​ |  | 652 | ​ |  | —
Home equity | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Other consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
With an allowance recorded: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Construction and land development | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other commercial real estate | ​ | ​ | 678 | ​ | ​ | 3 | ​ | ​ | 123 | ​ | ​ | —
Commercial | ​ | ​ | 73 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Agricultural | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Tax exempt loans | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Residential real estate | ​ | ​ | 249 | ​ | ​ | — | ​ | ​ | 361 | ​ | ​ | —
Home equity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Other consumer | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Commercial real estate | ​ | ​ | 1,896 | ​ | ​ | 3 | ​ | ​ | 212 | ​ | ​ | —
Commercial and industrial | ​ |  | 371 | ​ |  | — | ​ | ​ | 429 | ​ | ​ | —
Residential real estate | ​ |  | 685 | ​ |  | — | ​ | ​ | 1,013 | ​ |  | —
Consumer | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Total impaired loans | ​ | $ | 2,952 | ​ | $ | 3 | ​ | $ | 1,654 | ​ | $ | —
​ Troubled Debt Restructuring Loans The Company’s loan portfolio also includes certain loans that have been modified in a Troubled Debt Restructuring ("TDR"), where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Certain TDRs are classified as non-performing at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months. TDRs are evaluated individually for impairment and may result in a specific allowance amount allocated to an individual loan. The following tables include the recorded investment and number of modifications identified during the twelve months ended December 31, 2020, 2019 and 2018, respectively. The table includes the recorded investment in the loans prior to a modification and also the recorded investment in the loans after the loans were restructured. Modifications may include adjustments to interest rates, payment amounts, extensions of maturity, court ordered concessions or other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2020
​ | ​ | ​ | ​ | Pre-Modification | ​ | Post-Modification | ​ | ​ | ​
​ | ​ | Number of | ​ | Outstanding Recorded | ​ | Outstanding Recorded | ​ | Specific
(in thousands, except modifications) |  | Modifications |  | Investment |  | Investment | ​ | Reserve
Troubled Debt Restructurings |  |  |  | ​ |  |  | ​ | ​ | ​ | ​ |
Other commercial real estate |  | 1 | ​ | $ | 54 | ​ | $ | 244 | ​ | $ | 24
Other commercial |  | 6 | ​ |  | 229 | ​ |  | 239 | ​ | ​ | —
Agricultural | ​ | 1 | ​ | ​ | 86 | ​ | ​ | 86 | ​ | ​ | —
Home equity | ​ | 1 | ​ | ​ | 26 | ​ | ​ | 24 | ​ | ​ | —
Other consumer | ​ | 1 | ​ | ​ | 9 | ​ | ​ | 8 | ​ | ​ | —
Total |  | 10 | ​ | $ | 404 | ​ | $ | 601 | ​ | $ | 24
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, 2019
​ | ​ | ​ | ​ | Pre-Modification | ​ | Post-Modification | ​ | ​ | ​
​ | ​ | Number of | ​ | Outstanding Recorded | ​ | Outstanding Recorded | ​ | Specific
(in thousands, except modifications) |  | Modifications |  | Investment |  | Investment | ​ | Reserve
Troubled Debt Restructurings |  |  |  | ​ |  |  | ​ | ​ | ​ | ​ |
Other commercial real estate |  | 10 | ​ | $ | 630 | ​ | $ | 529 | ​ | $ | 69
Other commercial |  | 7 | ​ |  | 366 | ​ |  | 271 | ​ | ​ | —
Agricultural |  | 2 | ​ |  | 500 | ​ |  | 503 | ​ | ​ | —
Residential mortgages |  | 12 | ​ |  | 1,427 | ​ |  | 1,327 | ​ | ​ | —
Total |  | 31 | ​ | $ | 2,923 | ​ | $ | 2,630 | ​ | $ | 69
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Twelve Months Ended December 31, 2018
​ | ​ | ​ | ​ | Pre-Modification | ​ | Post-Modification | ​ | ​ | ​
​ | ​ | Number of | ​ | Outstanding Recorded | ​ | Outstanding Recorded | ​ | Specific
(in thousands, except modifications) |  | Modifications |  | Investment |  | Investment | ​ | Reserve
Troubled Debt Restructurings |  |  |  | ​ |  |  | ​ | ​ | ​ | ​ |
Commercial construction and land development | ​ | 1 | ​ | $ | 1 | ​ | $ | 1 | ​ | $ | 1
Other commercial real estate |  | 9 | ​ |  | 1,896 | ​ |  | 1,564 | ​ | ​ | 153
Other commercial |  | 7 | ​ |  | 556 | ​ |  | 486 | ​ | ​ | 55
Agricultural |  | 1 | ​ |  | 167 | ​ |  | — | ​ | ​ | —
Residential mortgages |  | 19 | ​ |  | 3,348 | ​ |  | 2,752 | ​ | ​ | 145
Home equity |  | 1 | ​ |  | 100 | ​ |  | 100 | ​ | ​ | —
Other consumer |  | 3 | ​ |  | 13 | ​ |  | 11 | ​ | ​ | —
Total |  | 41 | ​ | $ | 6,081 | ​ | $ | 4,914 | ​ | $ | 354
​ The following table summarizes the types of loan concessions made for the periods presented: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2020 | ​ | 2019 | ​ | 2018
​ |  | ​ |  | Post-Modification |  | ​ |  | Post-Modification |  | ​ |  | Post-Modification
​ | ​ | ​ | ​ | Outstanding | ​ | ​ | ​ | outstanding | ​ | ​ | ​ | outstanding
​ | ​ | Number of | ​ | Recorded | ​ | Number of | ​ | Recorded | ​ | Number of | ​ | Recorded
(in thousands, except modifications) |  | Modifications |  | Investment |  | Modifications |  | Investment |  | Modifications |  | Investment
Troubled Debt Restructurings | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest only payments and maturity concession |  | — | ​ | $ | — | ​ | 2 | ​ | $ | 73 | ​ | 1 | ​ | $ | 16
Interest rate, forbearance and maturity concession | ​ | 4 | ​ | ​ | 384 | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | —
Amortization and maturity concession |  | — | ​ |  | — | ​ | 4 | ​ |  | 273 | ​ | 1 | ​ |  | 286
Amortization, interest rate and maturity concession | ​ | — | ​ | ​ | — | ​ | 5 | ​ | ​ | 539 | ​ | — | ​ | ​ | —
Forbearance |  | — | ​ |  | — | ​ | 5 | ​ |  | 346 | ​ | 3 | ​ |  | 271
Forbearance and interest only payments | ​ | 1 | ​ | ​ | 24 | ​ | 7 | ​ | ​ | 692 | ​ | 6 | ​ | ​ | 121
Forbearance and interest rate concession | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | — | ​ | 1 | ​ | ​ | 49
Forbearance and maturity concession |  | — | ​ |  | — | ​ | 4 | ​ |  | 472 | ​ | 20 | ​ |  | 2,030
Maturity concession |  | 5 | ​ |  | 193 | ​ | — | ​ |  | — | ​ | 2 | ​ |  | 440
Restructure without concession | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | — | ​ | 5 | ​ | ​ | 1,419
Other | ​ | — | ​ | ​ | — | ​ | 4 | ​ | ​ | 235 | ​ | 2 | ​ | ​ | 282
Total |  | 10 | ​ | $ | 601 | ​ | 31 | ​ | $ | 2,630 | ​ | 41 | ​ | $ | 4,914
​ For the twelve months ended December 31, 2020, 2019 and 2018, there were no loans that were restructured that had subsequently defaulted during the period. The evaluation of certain loans individually for specific impairment includes loans that were previously classified as TDRs or continue to be classified as TDRs. Foreclosure As of December 31, 2020, the Company had no bank-owned residential real estate property. As of December 31, 2019, the Company maintained bank-owned residential real estate property with a fair value of $2.2 million. Additionally, residential mortgage loans collateralized by real estate property that are in the process of foreclosure as of December 31, 2020 and December 31, 2019 totaled $633 thousand and $810 thousand, respectively. Loan Concentrations Loan concentrations in specific industries may occasionally emerge as a result of economic conditions, changes in local demands, natural loan growth and runoff. At December 31, 2020 the largest industry concentration outside of commercial real estate was the hospitality industry which represents 11% or $276.4 million of the Company’s total loan portfolio, compared with 8.6% or $227.0 million at December 31, 2019. Loans to Related Parties In the ordinary course of business, the Bank has made loans at prevailing rates and terms to directors, officers and other related parties. In management’s opinion, such loans do not present more than the normal risk of collectability or incorporate other unfavorable features, and were made under terms that are consistent with the Bank’s lending policies. Loan to related parties at December 31, 2020 and December 31, 2019 are summarized below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | December 31, 2020 | ​ | December 31, 2019
Beginning balance |  | $ | 8,209 | ​ | $ | 8,395
Changes in composition(1) | ​ |  | — | ​ |  | (302)
New loans | ​ |  | 1,589 | ​ |  | 242
Less: repayments | ​ |  | (3,667) | ​ |  | (126)
Ending balance | ​ | $ | 6,131 | ​ | $ | 8,209
(1) | Adjustments to reflect changes in status of directors and officers for each year presented.
Mortgage Banking The Bank sells loans in the secondary market and retains the ability to service many of these loans. The Bank earns fees for the servicing provided. At year end 2020 and 2019, the Company was servicing loans for participants totaling $596.3 million and $497.2 million, respectively. Loans serviced for others are not included in the accompanying consolidated balance sheets. The risks inherent in servicing assets relate primarily to changes in prepayments that result from shifts in interest rates. Contractually-specified servicing fees were $1.3 million for the years ended 2020, 2019, and 2018, and is included as a component of other income within non- interest income. Servicing rights activity during 2020 and 2019, included in other assets, was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At or for the Twelve Months Ended December 31,
(in thousands) |  | 2020 |  | 2019
Balance at beginning of year | ​ | $ | 3,001 | ​ | $ | 3,086
Additions | ​ |  | 1,152 | ​ |  | 160
Amortization | ​ |  | (800) | ​ |  | (245)
Balance at end of year | ​ | $ | 3,353 | ​ | $ | 3,001
​ Total held for sale loans were $24.0 million and $6.5 million and at December 31, 2020 and 2019, respectively. The net gains on sales of loans at December 31, 2020 and 2019 were $5.3 million and $493 thousand, respectively, and is included as a component of mortgage banking income within non-interest income. ​

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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