Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Additional information (Details)

v3.19.2
Intangible Assets - Additional information (Details) - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 10 years  
Amortization of Intangible Assets $ 322,000 $ 341,000
Impairment of Intangible Assets (Excluding Goodwill) $ 0 $ 0
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 6 years 3 months 18 days  
Intellectual Property [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 4 years 6 months  
Maximum [Member] | Intellectual Property [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 23 years  
Minimum [Member] | Intellectual Property [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 16 years