v3.24.0.1

Summary of Significant Accounting Policies (Narrative) (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) customer | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) customer | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Accounts receivable - trade |  |  |  |  | $ 1,000,000
Reserve for loss on contract |  | $ 0 |  | $ 0 |
Revenue recognized |  | 50,000 |  | 0 |
Contract assets |  | 0 |  | 0 |
Contract liabilities |  | $ 0 |  | 0 | $ 100,000
Lease, Practical Expedients, Package [true false] |  | false |  |  |
Investments in debt securities |  | $ 0 |  | 0 |
Inventory |  | 0 |  | 0 |
Research and development expense | $ 2,462,000 | $ 0 | $ 5,524,000 |  |
Dividend rate |  | 0.00% |  |  |
Amount in excess of insured limit |  | $ 3,200,000 |  | $ 6,900,000 |
Revenue reported in discontinued operations | 130,000 |  | 186,000 |  |
Revenues |  | $ 50,000 |  |  |
Discontinued Operations [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Revenue recognized included in contract liabilities | $ 36,000 |  | $ 48,000 |  |
One Customer [Member] | Revenue [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk, percentage | 100.00% |  | 100.00% |  |
Revenues | $ 0 |  | $ 0 |  |
Two Customers [Member] | Revenue [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of major customers | customer | 2 |  |  |  |
Three Customers [Member] | Revenue [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of major customers | customer |  |  | 3 |  |
Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Fixed assets, useful life |  | 3 years |  |  |
Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Fixed assets, useful life |  | 10 years |  |  |
Intellectual Property [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Intangible asset, useful life |  | 20 years |  |  |

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