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Patents - Additional Information (Detail)
3 Months Ended
Sep. 30, 2015
USD ($)
Zertane Patents [Member]  
Finite-Lived Intangible Assets [Line Items]  
Costs of establishing patents $ 500,000
Remaining amortization period 11 years
ORP [Member]  
Finite-Lived Intangible Assets [Line Items]  
Costs of establishing patents $ 380,000
Remaining amortization period 15 years