Share-Based Compensation - Summary of Warrants (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding warrants (in shares)	0
Warrants
Summary of the warrants issued
Outstanding and exercisable, Beginning balance (in shares)	80,000	87,000	606,000
Issued (in shares)	0	0	0
Canceled (in shares)	0	0	0
Exercised (in shares)	(80,000)	(7,000)	(519,000)
Expired (in shares)	0	0	0
Outstanding and exercisable, Ending balance (in shares)	0	80,000	87,000
Warrants - Derivative Liability
Summary of the warrants issued
Warrants classified as derivative liabilities	$ 0	$ 0	$ 0