| Shareholders' Equity - Share Options Narratives (Details) - Share Options - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Share-based compensation expense net | $ 26 | $ 13 | $ 60 | $ 86 | 
| Expense to be recognized | $ 73 | $ 73 | ||
| Expenses to be recognized (in years) | 1 year 25 days | |||
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- Definition Amount, after tax, of expense for award under share-based payment arrangement. No definition available. 
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Details 
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