Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details Textual)

v3.8.0.1
Intangible Assets (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]    
Amortization of Intangible Assets $ 85 $ 88
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Asset, Useful Life 10 years  
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