Annual report pursuant to Section 13 and 15(d)

Intangible assets (Details)

v3.10.0.1
Intangible assets (Details) - USD ($)
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]    
Patents $ 208,137 $ 135,291
Customer relationships 81,773 81,773
Less: Accumulated amortization (27,175) (12,097)
Subtotal 193,390  
Trademarks 1,560 1,560
Intangible assets, net $ 264,295 $ 206,527
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite lived intangible asset estimated useful life 15 years  
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite lived intangible asset estimated useful life 14 years