Going Concern (Narrative) (Details) $ in Millions  | 
 Jun. 30, 2024  
USD ($) 
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|---|---|
| Going Concern [Abstract] | |
| Restricted cash, cash equivalents and investments | $ 1.1 | 
| X | ||||||||||
- Definition Going Concern [Abstract] No definition available. 
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| X | ||||||||||
- Definition Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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