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Loans - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 USD ($) loan | Sep. 30, 2019 USD ($) loan | Sep. 30, 2020 USD ($) loan | Sep. 30, 2019 USD ($) loan | Dec. 31, 2019 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Net deferred loan costs | $ 5,323 | $ 7,181 | $ 5,323 | $ 7,181 | $ 7,419
Interest and fee income | 14,109 | 14,993 | 44,124 | 44,450 |
Qualifying first mortgage loans | 379,387 | 308,163 | 379,387 | 308,163 | 296,871
Loans pledged as collateral | 271,905 | 254,076 | 271,905 | 254,076 | 240,133
Loans | $ 1,436,646 | $ 1,263,459 | $ 1,436,646 | $ 1,263,459 | $ 1,297,075
Percentage of loans receivable, by type | 100.00% | 100.00% | 100.00% | 100.00% | 100.00%
Loans classified as TDR (loan) | loan |  |  | 78 | 82 | 81
Value of loans classified as TDR | $ 13,390 | $ 24,281 | $ 13,390 | $ 24,281 | $ 21,424
Number of loans | loan | 15 | 9 | 15 | 9 |
Value of TDR loans more than 30 days past due | $ 2,814 | $ 1,084 | $ 2,814 | $ 1,084 |
Number of TDR loans more than 30 days past due (loan) | loan | 2 | 4 | 2 | 4 |
Number of TDR loans involved in bankruptcy (loan) | loan | 8 |  | 8 |  |
Value of TDR loans involved in bankruptcy | $ 911 |  | $ 911 |  |
Number of TDR loans on non-accrual status (loan) | loan | 22 |  | 22 |  |
Value of TDR loans on non-accrual status | $ 3,159 |  | $ 3,159 |  |
Number of TDR loans in the process of foreclosure (loan) | loan | 2 |  | 2 |  |
Loans classified as TDRs in process of foreclosure | $ 430 |  | $ 430 |  |
Number of mortgage loans in the process of foreclosure (loan) | loan | 17 | 15 | 17 | 15 |
Value of mortgage loans in the process of foreclosure | $ 2,083 | $ 1,649 | $ 2,083 | $ 1,649 |
Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Net deferred loan costs | 299 |  | 299 |  |
Gross origination fee income | 3,797 |  | 3,797 |  |
Interest and fee income | 788 |  |  |  |
Loans | $ 279,700 |  | $ 279,700 |  |
Percentage of loans receivable, by type | 20.80% |  | 20.80% |  |
Loans classified as TDR (loan) | loan | 996 |  |  |  |
Original or Subsequent Modification | Exemption from Troubled Debt Restructure Designation, CARES Act |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 81,000 |  | $ 81,000 |  |
Percentage of loans receivable, by type | 6.00% |  | 6.00% |  |
Unallocated |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 0 | 0 | $ 0 | $ 0 | 0
Number of days past due |  |  | 30 days | 30 days |
Consumer |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 27,323 | $ 25,919 | $ 27,323 | $ 25,919 | $ 26,503
Percentage of loans receivable, by type | 1.90% | 2.10% | 1.90% | 2.10% | 2.00%
Loans classified as TDR (loan) | loan |  |  | 1 | 0 | 0
Value of loans classified as TDR | $ 10 | $ 0 | $ 10 | $ 0 | $ 0
Number of loans | loan | 1 | 0 | 1 | 0 |
Value of TDR loans more than 30 days past due | $ 10 | $ 0 | $ 10 | $ 0 |
Consumer | Exemption from Troubled Debt Restructure Designation, CARES Act |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Loans | $ 1,120 |  | $ 1,120 |  |
Percentage of loans receivable, by type | 100.00% |  | 100.00% |  |
Loans classified as TDR (loan) | loan |  |  | 64 |  |

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