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Summary of Significant Accounting Policies (Details)
 12 Months Ended
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