Other (Expense) Income - Summary of Other (Expense) Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Other Income and Expenses [Abstract]
Amortization of debt discount	$ (50)		$ (50)	$ (126)
Amortization of deferred financing costs	(11)		(11)	(1)
Interest expense	(9)		(9)
Net gain from sale of non-core assets		101		101
Total other (expense) income	$ (70)	$ 101	$ (70)	$ (26)