Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.7.0.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Summary Of Significant Accounting Policies [Line Items]    
Revenue from Grants $ 131,000 $ 65,000
Work in process 26,000 22,000
Cash, FDIC Insured Amount $ 7,623,000 $ 22,502,000
Minimum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Remaining Amortization Period 16 years  
Property, Plant and Equipment, Estimated Useful Lives 3 years  
Maximum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Remaining Amortization Period 23 years  
Property, Plant and Equipment, Estimated Useful Lives 15 years  
Patents [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Finite-Lived Intangible Assets, Remaining Amortization Period 10 years