v3.23.3

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Jun. 30, 2023
Summary of Significant Accounting Policies [Abstract] |
Schedule of of total cash, cash equivalents and restricted cash | The following table summarizes the components of total cash, cash equivalents and restricted cash in the consolidated statements of cash flows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | June 30,
​ | ​ | 2023 | ​ | 2022
Cash and equivalents | ​ | $ | 4,301 | ​ | $ | 22,676
Collateral held for letter of credit - term note payable | ​ | ​ | 3,025 | ​ | ​ | 5,743
Collateral held for letter of credit - San Diego lease | ​ | ​ | 198 | ​ | ​ | 198
Collateral held for Company purchasing card | ​ | ​ | 55 | ​ | ​ | 55
Total cash, cash equivalents and restricted cash | ​ | $ | 7,579 | ​ | $ | 28,672
Schedule of inventory |
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | June 30,
​ | ​ | 2023 | ​ | 2022
Raw materials | ​ | $ | — | ​ | $ | 3,896
Work in process | ​ | ​ | — | ​ | ​ | 4
​ | ​ | $ | — | ​ | $ | 3,900

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