Common Stock Incentive, Stock Purchase Plans, and Other Compensation Plans - Stock Option Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Shares
Outstanding, beginning of period (in shares)	365	191
Granted (in shares)		185
Exercised (in shares)		(9)
Cancelled or expired (in shares)	(4)	(2)
Outstanding, end of period (in shares)	361	365
Weighted Average Exercise Price
Outstanding weighted average exercise price, beginning of period (in dollars per share)	$ 6.25	$ 5.90
Granted weighted average exercise price (in dollars per share)		6.15
Exercised weighted average exercise price (in dollars per share)		1.95
Canceled or expired weighted average exercise price (in dollars per share)	5.30	15.05
Outstanding weighted average exercise price, end of period (in dollars per share)	$ 5.48	$ 6.25