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v3.20.4

Operating lease commitments and contingencies (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) item | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Operating leases |  |  |
Options to renew | true |  |
Renewal term | 5 years |  |
Weighted average remaining lease term | 13 years | 16 years |
Weighted-average discount rate | 3.19% | 3.46% |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Property, Plant and Equipment, Net | Property, Plant and Equipment, Net |
Lease liabilities for operating leases | $ 6,425 |  |
Operating Lease, Liability, Statement of Financial Position [Extensible List] | Other Liabilities | Other Liabilities |
Lease payments | $ 660 |  |
Lease expense | $ 326 |  |
Number of operating lease terminated | item | 2 |  |
Rent expense | $ 727 | $ 670 |
Rent expense |  |  | $ 492
Premises and Equipment |  |  |
Operating leases |  |  |
Right-of-use assets | 6,282 | 6,125 |
Other Liabilities. |  |  |
Operating leases |  |  |
Lease liabilities for operating leases | 6,425 | $ 6,194 |
Additional Lease Property |  |  |
Operating leases |  |  |
Lease liabilities for operating leases | $ 899 |  |
Number of operating lease added | item | 1 |  |
Minimum |  |  |
Operating leases |  |  |
Remaining renewal term | 3 years |  |
Discount rate | 1.95% | 2.89% |
Maximum |  |  |
Operating leases |  |  |
Remaining renewal term | 21 years |  |
Discount rate | 3.85% | 3.85% |

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- Definition Remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Discount rate used by lessee to determine present value of operating lease payments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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