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Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands |  |  | 4 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 17, 2020 USD ($) Branch | Mar. 27, 2020 USD ($) | Jul. 09, 2020 USD ($) | Jun. 30, 2020 USD ($) Segment | Dec. 31, 2019 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |
Retained earnings |  |  |  | $ 307,845 | $ 313,364
Number of identified portfolio segments | Segment |  |  |  | 6 |
Subsequent Event [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Offering unsecured personal loans, percentage |  |  | 2.95% |  |
Number of bank branch closure | Branch | 6 |  |  |  |
Percentage of branch network | 10.00% |  |  |  |
Percentage of branch network impact | 6.00% |  |  |  |
Anticipates annual expense savings branch closures | $ 2,600 |  |  |  |
Pre tax expense related branch closures | 1,700 |  |  |  |
Total costs result in future cash expenditures | 800 |  |  |  |
Subsequent Event [Member] | Employee Severance [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Pre tax expense related branch closures | 200 |  |  |  |
Subsequent Event [Member] | Lease Termination Costs [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Pre tax expense related branch closures | 600 |  |  |  |
Subsequent Event [Member] | Valuation Adjustments On Branch Facilities [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Pre tax expense related branch closures | $ 900 |  |  |  |
Maximum [Member] | Subsequent Event [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Certificate of deposit penalty fees for withdrawals |  |  | $ 20,000 |  |
Offering unsecured personal loans, amount |  |  | $ 5,000 |  |
Offering unsecured personal loans, period |  |  | 60 months |  |
CARES Act [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated amount of relief fund |  | $ 2,200 |  |  |
ASU 2016-13 [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Retained earnings |  |  |  | $ (8,700) |
Increase in the allowance for credit losses on loans |  |  |  | 9,600 |
Increase (decrease) in deferred tax assets |  |  |  | 3,000 |
ASU 2016-13 [Member] | Held To Maturity Investment Securities [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Increase in the allowance for credit losses on loans |  |  |  | 14 |
ASU 2016-13 [Member] | Unfunded Commitments [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Increase in the allowance for credit losses on loans |  |  |  | $ 2,100 |

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