Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.2
Summary of Significant Accounting Policies (Details) - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Summary Of Significant Accounting Policies [Line Items]    
Revenues From Grants $ 37,000 $ 44,000
Impairment of Intangible Assets (Excluding Goodwill) 0 0
Work in process 0 0
Contract with Customer, Asset, Net, Current 0 0
Contract liabilities (or deferred revenue) 1,279,000 0
Cash, FDIC Insured Amount $ 3,924,000 $ 15,455,000
Sales Revenue, Net [Member] | Customer A [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Concentration Risk, Percentage 92.00% 54.00%
Minimum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 3 years  
Maximum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 15 years  
Intellectual Property [Member] | Minimum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Remaining Amortization Period 16 years  
Intellectual Property [Member] | Maximum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Remaining Amortization Period 23 years  
Patents [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Property, Plant and Equipment, Useful Life 10 years