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Allowance for Loan Losses - Loan loss by the primary segments (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | --- | --- | ---
Loans: |  |  |  |  |  |
Individually evaluated for impairment | $ 2,272 |  | $ 855 |  |  |
Collectively evaluated for impairment | 990,440 |  | 971,240 |  |  |
Total loans | 992,712 |  | 972,095 |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 677 |  | 104 |  |  |
General reserve allocation | 11,075 |  | 11,241 |  |  |
Total allowance for loan losses | 11,752 | $ 11,631 | 11,345 | $ 9,699 | $ 9,334 | $ 9,279
Commercial loans secured by non-owner occupied real estate |  |  |  |  |  |
Loans: |  |  |  |  |  |
Total loans | 428,274 |  | 400,751 |  |  |
Real estate-residential mortgage |  |  |  |  |  |
Loans: |  |  |  |  |  |
Total loans | 268,595 |  | 249,989 |  |  |
Consumer. |  |  |  |  |  |
Loans: |  |  |  |  |  |
Total loans | 16,391 |  | 16,363 |  |  |
Allocation for General Risk [Member] |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 0 |  | 0 |  |  |
General reserve allocation | 1,172 |  | 1,093 |  |  |
Total allowance for loan losses | 1,172 | 1,161 | 1,093 | 961 | 925 | 924
Commercial |  |  |  |  |  |
Loans: |  |  |  |  |  |
Total loans | 707,726 |  | 705,743 |  |  |
Commercial | Commercial. |  |  |  |  |  |
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 2,265 |  | 847 |  |  |
Collectively evaluated for impairment | 277,187 |  | 304,145 |  |  |
Total loans | 279,452 |  | 304,992 |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 670 |  | 96 |  |  |
General reserve allocation | 2,864 |  | 3,376 |  |  |
Total allowance for loan losses | 3,534 | 3,572 | 3,472 | 3,784 | 3,860 | 3,951
Commercial | Commercial loans secured by non-owner occupied real estate |  |  |  |  |  |
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 7 |  | 8 |  |  |
Collectively evaluated for impairment | 428,267 |  | 400,743 |  |  |
Total loans | 428,274 |  | 400,751 |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 7 |  | 8 |  |  |
General reserve allocation | 5,528 |  | 5,365 |  |  |
Total allowance for loan losses | 5,535 | 5,448 | 5,373 | 3,619 | 3,288 | 3,119
Consumer |  |  |  |  |  |
Loans: |  |  |  |  |  |
Total loans | 284,986 |  | 266,352 |  |  |
Consumer | Real estate-residential mortgage |  |  |  |  |  |
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 268,595 |  | 249,989 |  |  |
Total loans | 268,595 |  | 249,989 |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 0 |  | 0 |  |  |
General reserve allocation | 1,388 |  | 1,292 |  |  |
Total allowance for loan losses | 1,388 | 1,329 | 1,292 | 1,216 | 1,141 | 1,159
Consumer | Consumer. |  |  |  |  |  |
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 16,391 |  | 16,363 |  |  |
Total loans | 16,391 |  | 16,363 |  |  |
Allowance for loan losses: |  |  |  |  |  |
Specific reserve allocation | 0 |  | 0 |  |  |
General reserve allocation | 123 |  | 115 |  |  |
Total allowance for loan losses | $ 123 | $ 121 | $ 115 | $ 119 | $ 120 | $ 126

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