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Loans, Collateral Dependent Loans and Loans With/Without Specific Valuation Allowance (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) Loan | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Loans with a specific valuation allowance [Abstract] |  |  |
Specific Allowance |  | $ 1,212 | $ 801
Total loans [Abstract] |  |  |
Recorded Balance |  | 57,771 | 46,366
Unpaid Contractual Principal Balance |  | 61,786 | 50,956
Specific Allowance |  | 1,212 | 801
Average Investment in Impaired Loans |  | 55,700 | 47,097
Interest Income Recognized |  | 2,371 | 2,171
Commercial [Member] | Collateral Pledged [Member] |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |
Specific Allowance | $ 450 |  |
Total loans [Abstract] |  |  |
Number of Loans | Loan | 22 |  |
Recorded Balance | $ 63,574 |  |
Specific Allowance | 450 |  |
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 | 5 |  |
Recorded Balance | $ 26,194 |  |
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 | $ 7,833 |  |
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 | 12 |  |
Recorded Balance | $ 24,497 |  |
Specific Allowance | 200 |  |
Commercial [Member] | Commercial Other [Member] |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 7,829 | 8,285
Unpaid Contractual Principal Balance |  | 9,489 | 9,982
Average Investment in Impaired Loans |  | 9,889 | 8,774
Interest Income Recognized |  | 460 | 530
Loans with a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 3,244 | 473
Unpaid Contractual Principal Balance |  | 3,244 | 473
Specific Allowance |  | 886 | 146
Average Investment in Impaired Loans |  | 1,323 | 285
Interest Income Recognized |  | 29 | 16
Total loans [Abstract] |  |  |
Recorded Balance |  | 11,073 | 8,758
Unpaid Contractual Principal Balance |  | 12,733 | 10,455
Specific Allowance |  | 886 | 146
Average Investment in Impaired Loans |  | 11,212 | 9,059
Interest Income Recognized |  | 489 | 546
Commercial [Member] | Commercial Other [Member] | Collateral Pledged [Member] |  |  |
Loans with a specific valuation allowance [Abstract] |  |  |
Specific Allowance | $ 0 |  |
Total loans [Abstract] |  |  |
Number of Loans | Loan | 1 |  |
Recorded Balance | $ 5,050 |  |
Specific Allowance | 0 |  |
Commercial [Member] | Commercial Other [Member] | Collateral Pledged by Leasehold Mortgage [Member] |  |  |
Total loans [Abstract] |  |  |
Recorded Balance | $ 5,100 |  |
Commercial [Member] | Construction [Member] |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 2,836 | 4,100
Unpaid Contractual Principal Balance |  | 2,837 | 4,100
Average Investment in Impaired Loans |  | 3,234 | 3,923
Interest Income Recognized |  | 170 | 171
Loans with a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 174 | 127
Unpaid Contractual Principal Balance |  | 174 | 127
Specific Allowance |  | 99 | 50
Average Investment in Impaired Loans |  | 215 | 42
Interest Income Recognized |  | 11 | 0
Total loans [Abstract] |  |  |
Recorded Balance |  | 3,010 | 4,227
Unpaid Contractual Principal Balance |  | 3,011 | 4,227
Specific Allowance |  | 99 | 50
Average Investment in Impaired Loans |  | 3,449 | 3,965
Interest Income Recognized |  | 181 | 171
Commercial [Member] | Real Estate [Member] |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 40,346 | 29,645
Unpaid Contractual Principal Balance |  | 41,557 | 31,409
Average Investment in Impaired Loans |  | 36,976 | 30,250
Interest Income Recognized |  | 1,601 | 1,412
Loans with a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 1,033 | 1,854
Unpaid Contractual Principal Balance |  | 2,176 | 2,983
Specific Allowance |  | 227 | 605
Average Investment in Impaired Loans |  | 1,678 | 2,051
Interest Income Recognized |  | 15 | 1
Total loans [Abstract] |  |  |
Recorded Balance |  | 41,379 | 31,499
Unpaid Contractual Principal Balance |  | 43,733 | 34,392
Specific Allowance |  | 227 | 605
Average Investment in Impaired Loans |  | 38,654 | 32,301
Interest Income Recognized |  | 1,616 | 1,413
Residential [Member] | Construction [Member] |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  |  | 0
Unpaid Contractual Principal Balance |  |  | 0
Average Investment in Impaired Loans |  |  | 106
Interest Income Recognized |  |  | 0
Loans with a specific valuation allowance [Abstract] |  |  |
Specific Allowance |  |  | 0
Total loans [Abstract] |  |  |
Recorded Balance |  |  | 0
Unpaid Contractual Principal Balance |  |  | 0
Specific Allowance |  |  | 0
Average Investment in Impaired Loans |  |  | 106
Interest Income Recognized |  |  | 0
Residential [Member] | Real Estate [Member] |  |  |
Loans without a specific valuation allowance [Abstract] |  |  |
Recorded Balance |  | 2,309 | 1,882
Unpaid Contractual Principal Balance |  | 2,309 | 1,882
Average Investment in Impaired Loans |  | 2,385 | 1,666
Interest Income Recognized |  | 85 | 41
Loans with a specific valuation allowance [Abstract] |  |  |
Specific Allowance |  | 0 | 0
Total loans [Abstract] |  |  |
Recorded Balance |  | 2,309 | 1,882
Unpaid Contractual Principal Balance |  | 2,309 | 1,882
Specific Allowance |  | 0 | 0
Average Investment in Impaired Loans |  | 2,385 | 1,666
Interest Income Recognized |  | $ 85 | $ 41

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