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
Sep. 30, 2024
Jun. 30, 2024
Sep. 30, 2023
Jun. 30, 2023
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]        
Restricted cash, held in accordance with liquidity covenants $ 200 $ 200    
Additional collateral held by bank (percentage of credit issued) 5.00%      
Cash and equivalents $ 11,038 14,210    
Restricted cash 223 215    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total 11,261 14,425 $ 4,761 $ 7,579
Collateral Held For Letter Of Credit - San Diego Lease        
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]        
Restricted cash 198 198    
Collateral Held For Company Purchasing Card        
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]        
Restricted cash $ 25 $ 17