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Summary of Significant Accounting Policies (Details) | 12 Months Ended
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Jun. 30, 2021 USD ($) Country | Jun. 30, 2020 USD ($) Country
Summary Of Significant Accounting Policies [Line Items] |  |
Revenue | $ 334,000 | $ 488,000
Foreign currency transaction gain (loss) | $ 3,000 | $ (10,000)
Number of countries in which entity operates | Country | 10 | 7
Research and development expenses | $ 2,692,000 | $ 3,437,000
Allowance for doubtful accounts | $ 0 | 0
Estimated useful life | 5 years |
Impairment of long-lived assets | $ 173,000 | $ 0
Purchased Software |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful life | 3 years |
Less Than One Year |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Product sales, description | The Company recognizes revenue from sales of products upon shipment or delivery when control of the product transfers to the customer, depending on the terms of each sale, and when collection is probable. In the circumstance where terms of a product sale include subjective customer acceptance criteria, revenue is deferred until the Company has achieved the acceptance criteria unless the customer acceptance criteria are perfunctory or inconsequential. The Company generally offers customers payment terms of less than one year |

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