Going Concern (Narrative) (Details)
$ in Millions
Sep. 30, 2023
|Going Concern [Abstract]|
|Restricted cash, cash equivalents and investments||$ 2.2|
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