Quarterly report pursuant to Section 13 or 15(d)

Intangible assets (Details)

v3.8.0.1
Intangible assets (Details) - USD ($)
6 Months Ended
Dec. 31, 2017
Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]    
Patents $ 168,541 $ 135,291
Customer relationships 81,773 81,773
Less: Accumulated amortization (20,173) (12,097)
Subtotal 230,141 204,967
Trademarks 1,560 1,560
Intangible assets, net $ 231,701 $ 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