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Leases (Narrative) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 USD ($) branchOffice | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) branchOffice | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |  |
Weighted average remaining lease term | 19 years 6 months |  | 19 years 6 months |  |
Weighted average discount rate | 2.92% |  | 2.92% |  |
Total operating lease expense | $ 700 | $ 600 | $ 1,600 | $ 1,300 |
Operating right-of-use lease assets | 19,707 |  | 19,707 |  | $ 20,719
Operating lease liabilities | $ 20,280 |  | $ 20,280 |  | $ 21,192
Minimum |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Option extension period | 5 years |  | 5 years |  |
Maximum |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Option extension period | 10 years |  | 10 years |  |
Land and Building |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Number of branch locations | branchOffice | 16 |  | 16 |  |
Land |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |
Number of branch locations | branchOffice | 9 |  | 9 |  |

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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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