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COVID-19 Pandemic Implications (Narrative) (Details) |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 08, 2020 USD ($) Customer | May 07, 2020 USD ($) Borrower Customer | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Mar. 31, 2019 USD ($)
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Loans and leases receivable, gross, carrying amount |  |  | $ 1,798,149,000 | $ 1,762,756,000 | $ 1,646,686,000
Subsequent Event [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Loan modifications to number of borrowers affected by Covid | Borrower |  | 479 |  |  |
Subsequent Event [Member] | COVID-19 Pandemic Implications [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Loans and leases receivable, gross, carrying amount |  | $ 201,522,000 |  |  |
Subsequent Event [Member] | Minimum [Member] | COVID-19 Pandemic Implications [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Modification from deferrals of principal and interest payments |  | 3 months |  |  |
Borrowers reverting to interest only payments |  | 3 months |  |  |
Subsequent Event [Member] | Maximum [Member] | COVID-19 Pandemic Implications [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Modification from deferrals of principal and interest payments |  | 6 months |  |  |
Borrowers reverting to interest only payments |  | 6 months |  |  |
PPP Loans [Member] | Small Business Administration [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Loan guarantee description |  |  | All PPP loans are 100% guaranteed by the Small Business Administration, and from the disbursements made through May 7, 2020 |  |
PPP Loans [Member] | Small Business Administration [Member] | Subsequent Event [Member] |  |  |  |  |
Unusual Risk Or Uncertainty [Line Items] |  |  |  |  |
Loan funding approved |  | $ 598,463,000 |  |  |
Loans and leases receivable, gross, carrying amount | $ 587,543,000 |  |  |  |
Number of business customers | Customer |  | 3,552 |  |  |
Number of business customers loan disbursed | Customer | 3,282 |  |  |  |
Related party loans account |  | $ 16,312,000 |  |  |
Guarantee percentage of loan |  | 100.00% |  |  |
Loan processing fees |  | $ 19,893,000 |  |  |

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