Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Cash, Cash Equivalents and Restricted Cash) (Details)

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Summary of Significant Accounting Policies (Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Jun. 30, 2022
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]    
Additional percentage of collateral held required by bank 5.00%  
Restricted cash $ 253 $ 5,996
Cash and cash equivalents 3,696 22,676
Total cash, cash equivalents and restricted cash 3,949 28,672
Letter Of Credit - Term Loan [Member]    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]    
Collateral held   5,743
Letter Of Credit - San Diego Lease [Member]    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]    
Collateral held 198 198
Company Purchasing Card [Member]    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]    
Collateral held $ 55 $ 55