Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

v3.10.0.1
Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross carrying value $ 5,613 $ 5,584
Finite-Lived Intangible Assets, Accumulated Amortization (4,115) (3,964)
Net intangible assets 1,498 1,620
Intellectual Property [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross carrying value 3,100 3,100
Finite-Lived Intangible Assets, Accumulated Amortization (2,321) (2,243)
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross carrying value 2,513 2,484
Finite-Lived Intangible Assets, Accumulated Amortization $ (1,794) $ (1,721)