| Leases - Current Portions Of ROU Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Leases | ||
| Right-of-use liabilities | $ 1.6 | $ 2.1 | 
| X | ||||||||||
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- References No definition available. 
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| X | ||||||||||
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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