Common Stock Warrants - Additional Information (Detail) - $ / shares	3 Months Ended
	Sep. 30, 2015	Aug. 07, 2015
Class of Warrant or Right [Line Items]
Warrant exercise price per share	$ 0.30	$ 0.17
Issuance of warrants to purchase common stock		5,474,829
Promissory Note [Member]
Class of Warrant or Right [Line Items]
Issuance of warrants to purchase common stock	1,050,000
Consultant for Services [Member]
Class of Warrant or Right [Line Items]
Warrants issued to consultant for services	100,000
Warrant exercise price per share	$ 0.19
Warrants life	5 years
Class of warrant or right number of warrants issued based on achievement of performance targets	800,000
Class of warrant or right number of warrants to be issued unless performance targets achieved	0