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Loans, Collateral Dependent Loans and Loans With/Without Specific Valuation Allowance (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) Loan | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance | $ 672 |  | $ 672 | $ 1,212
Total loans [Abstract] |  |  |  |
Recorded balance | 56,315 |  | 56,315 | 57,771
Unpaid Contractual Principal Balance | 61,020 |  | 61,020 | 61,786
Specific Allowance | 672 |  | 672 | 1,212
Average Investment in Impaired Loans | 57,291 |  | 54,740 | 55,700
Interest Income Recognized | 603 |  | 1,821 | 2,371
Commercial [Member] | Collateral Pledged [Member] |  |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance |  | $ 800 |  |
Total loans [Abstract] |  |  |  |
Number of Loans | Loan |  | 21 |  |
Recorded balance |  | $ 60,759 |  |
Specific Allowance |  | 800 |  |
Commercial [Member] | Hotel/Motel [Member] | Collateral Pledged [Member] |  |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance |  | $ 250 |  |
Total loans [Abstract] |  |  |  |
Number of Loans | Loan |  | 4 |  |
Recorded balance |  | $ 24,357 |  |
Specific Allowance |  | 250 |  |
Commercial [Member] | Commercial Real Estate Residential [Member] | Collateral Pledged [Member] |  |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance |  | $ 0 |  |
Total loans [Abstract] |  |  |  |
Number of Loans | Loan |  | 4 |  |
Recorded balance |  | $ 7,932 |  |
Specific Allowance |  | 0 |  |
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Collateral Pledged [Member] |  |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance |  | $ 200 |  |
Total loans [Abstract] |  |  |  |
Number of Loans | Loan |  | 11 |  |
Recorded balance |  | $ 22,383 |  |
Specific Allowance |  | 200 |  |
Commercial [Member] | Commercial Other [Member] |  |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 10,690 |  | 10,690 | 7,829
Unpaid Contractual Principal Balance | 12,384 |  | 12,384 | 9,489
Average Investment in Impaired Loans | 10,863 |  | 10,425 | 9,889
Interest Income Recognized | 92 |  | 380 | 460
Loans with a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 347 |  | 347 | 3,244
Unpaid Contractual Principal Balance | 347 |  | 347 | 3,244
Specific Allowance | 175 |  | 175 | 886
Average Investment in Impaired Loans | 358 |  | 680 | 1,323
Interest Income Recognized | 6 |  | 29 | 29
Total loans [Abstract] |  |  |  |
Recorded balance | 11,037 |  | 11,037 | 11,073
Unpaid Contractual Principal Balance | 12,731 |  | 12,731 | 12,733
Specific Allowance | 175 |  | 175 | 886
Average Investment in Impaired Loans | 11,221 |  | 11,105 | 11,212
Interest Income Recognized | 98 |  | 409 | 489
Commercial [Member] | Commercial Other [Member] | Collateral Pledged [Member] |  |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance |  | $ 350 |  |
Total loans [Abstract] |  |  |  |
Number of Loans | Loan |  | 2 |  |
Recorded balance |  | $ 6,087 |  |
Specific Allowance |  | 350 |  |
Commercial [Member] | Commercial Other [Member] | Collateral Pledged by Leasehold Mortgage [Member] |  |  |  |
Total loans [Abstract] |  |  |  |
Recorded balance |  | 5,100 |  |
Commercial [Member] | Commercial Other [Member] | Collateral Pledged by Underground Coal Mining Equipment and Junior Real Estate Liens [Member] |  |  |  |
Total loans [Abstract] |  |  |  |
Recorded balance |  | $ 1,000 |  |
Commercial [Member] | Construction [Member] |  |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 2,800 |  | 2,800 | 2,836
Unpaid Contractual Principal Balance | 2,800 |  | 2,800 | 2,837
Average Investment in Impaired Loans | 2,959 |  | 3,344 | 3,234
Interest Income Recognized | 37 |  | 132 | 170
Loans with a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 174 |  | 174 | 174
Unpaid Contractual Principal Balance | 174 |  | 174 | 174
Specific Allowance | 99 |  | 99 | 99
Average Investment in Impaired Loans | 174 |  | 229 | 215
Interest Income Recognized | 3 |  | 9 | 11
Total loans [Abstract] |  |  |  |
Recorded balance | 2,974 |  | 2,974 | 3,010
Unpaid Contractual Principal Balance | 2,974 |  | 2,974 | 3,011
Specific Allowance | 99 |  | 99 | 99
Average Investment in Impaired Loans | 3,133 |  | 3,573 | 3,449
Interest Income Recognized | 40 |  | 141 | 181
Commercial [Member] | Real Estate [Member] |  |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 38,620 |  | 38,620 | 40,346
Unpaid Contractual Principal Balance | 40,134 |  | 40,134 | 41,557
Average Investment in Impaired Loans | 39,217 |  | 35,762 | 36,976
Interest Income Recognized | 442 |  | 1,192 | 1,601
Loans with a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 1,366 |  | 1,366 | 1,033
Unpaid Contractual Principal Balance | 2,863 |  | 2,863 | 2,176
Specific Allowance | 398 |  | 398 | 227
Average Investment in Impaired Loans | 1,397 |  | 1,892 | 1,678
Interest Income Recognized | 0 |  | 15 | 15
Total loans [Abstract] |  |  |  |
Recorded balance | 39,986 |  | 39,986 | 41,379
Unpaid Contractual Principal Balance | 42,997 |  | 42,997 | 43,733
Specific Allowance | 398 |  | 398 | 227
Average Investment in Impaired Loans | 40,614 |  | 37,654 | 38,654
Interest Income Recognized | 442 |  | 1,207 | 1,616
Residential [Member] | Real Estate [Member] |  |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |  |
Recorded Balance | 2,318 |  | 2,318 | 2,309
Unpaid Contractual Principal Balance | 2,318 |  | 2,318 | 2,309
Average Investment in Impaired Loans | 2,323 |  | 2,408 | 2,385
Interest Income Recognized | 23 |  | 64 | 85
Loans with a specific valuation allowance [Abstract] |  |  |  |
Specific Allowance | 0 |  | 0 | 0
Total loans [Abstract] |  |  |  |
Recorded balance | 2,318 |  | 2,318 | 2,309
Unpaid Contractual Principal Balance | 2,318 |  | 2,318 | 2,309
Specific Allowance | 0 |  | 0 | 0
Average Investment in Impaired Loans | 2,323 |  | 2,408 | 2,385
Interest Income Recognized | $ 23 |  | $ 64 | $ 85

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