Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at July 1	$ 0	$ 76
Additions for tax positions of current period	0	0
Additions for tax positions of prior years	0	0
Decreases for tax positions of prior years	0	(76)
Balance at June 30	$ 0	$ 0