Stock-Based Compensation (Summarized Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Stock-Based Compensation [Abstract]
Outstanding, Number of shares, Beginning Balance	864,579	809,274	846,607
Granted, Number of shares	561,000	600,000
Expired unexercised, Number of shares		(370,000)
Forfeitures, Number of shares	(93,928)	(174,695)	(37,333)
Outstanding, Number of shares, Ending Balance	1,331,651	864,579	809,274	846,607
Exercisable, Number of Shares	474,986
Vested and expected to vest, Number of shares	1,331,651
Outstanding, Weighted average exercise price, Beginning Balance	$ 7.81	$ 13.99	$ 13.87
Granted, Weighted average exercise price	3.07	6.2
Expired unexercised, Weighted average exercise price		19.27
Forfeitures, Weighted average exercise price	7.5	6.65	11.23
Outstanding, Weighted average exercise price, Ending Balance	5.83	$ 7.81	$ 13.99	$ 13.87
Exercisable, Weighted average exercise price	8.77
Vested and expected to vest, Weighted average exercise price	$ 5.83
Outstanding, Weighted average remaining contractual term (in years)	7 years 6 months 21 days	7 years 18 days	2 years 8 months 1 day	3 years 9 months 18 days
Granted, Weighted average remaining contractual term (in years)	10 years	10 years
Exercisable, Weighted average remaining contractual term (in years)	5 years 3 months 3 days
Vested and expected to vest, Weighted average remaining contractual term (in years)	7 years 6 months 21 days
Outstanding, Aggregate intrinsic value, Beginning Balance		$ 370	$ 486
Granted, Aggregate intrinsic value	$ 676	$ 1,212
Outstanding, Aggregate intrinsic value, Ending Balance			$ 370	$ 486
Outstanding, Weighted average grant date fair value, Beginning Balance	$ 2.62	$ 4.2	$ 4.21
Granted, Weighted average grant date fair value	1.2	2.02
Forfeitures, Weighted average grant date fair value	2.81	2	4.55
Share Based Compensation Arrangement By Share Based Payment Award Options Expired Unexercised In Period Weighted Average Grant Date Fair Valu		5
Outstanding, Weighted average grant date fair value, Ending Balance	$ 2.01	$ 2.62	$ 4.2	$ 4.21