Stock Based Compensation Plans (Summary of non-vested stock options) (Detail) - Stock Option - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Shares subject to option
Shares subject to option, Non-vested at June 30, 2017	28
Shares subject to option, Granted	0	28	0
Shares subject to option, Vested	0
Shares subject to option, Forfeited	(28)
Shares subject to option, Non-vested at June 30, 2018	0	28
Weighted average grant date fair value
Weighted average grant date fair value, Non-vested at June 30, 2017	$ 5.44
Weighted average grant date fair value, Granted	0
Weighted average grant date fair value, Vested	0
Weighted average grant date fair value, Forfeited	(5.44)
Weighted average grant date fair value, Non-vested at June 30, 2018	$ 0	$ 5.44