Changes to Asset Retirement Obligation (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]
Balance at beginning of period			$ 1,294,497	$ 1,291,066	$ 1,291,066
Accretion (Note 10)	$ 36,998	$ 33,692	110,995	$ 101,076	134,768
Payments			(125,222)		(131,337)
Balance at end of period	$ 1,280,270		$ 1,280,270		$ 1,294,497