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Leases - Lease Costs and Maturity Analysis for Liabilities (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) Option | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Leases |  |  |
Right-of-use asset | $ 700 |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Prepaid Expense and Other Assets |  |
Option to extend the terms | true |  |
Number of options to extend | Option | 1 |  |
Extension term | 5 years |  |
Lease Costs |  |  |
Operating lease cost | $ 419 | $ 419 | $ 419
Lease cost | 419 | 419 | 419
Cash paid for amounts included in the measurement of lease liabilities | $ 438 | $ 429 | $ 421
Weighted average remaining lease terms in years - operating leases | 1 year 9 months | 2 years 9 months | 3 years 9 months
Weighted average discount rate - operating leases | 3.86% | 3.86% | 3.86%
Maturity analysis for liabilities |  |  |
Discount rate at commencement | 3.86% |  |
2023 | $ 447 |  |
2024 | 340 |  |
Total undiscounted cash flows | 787 |  |
Present value lease liability | 759 | $ 1,159 |
Difference between undiscounted cash flows and discounted cash flows | $ 28 |  |

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- Definition Amount of lease cost recognized by lessee for lease contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + 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 https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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