Stock-Based Compensation (Restricted Stock Activity) (Details) - USD ($) $ in Thousands	1 Months Ended							12 Months Ended
	May 31, 2018	Mar. 31, 2018	Aug. 31, 2017	Jun. 30, 2017	May 31, 2017	Aug. 31, 2016	Aug. 31, 2015	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Number of Shares of Restricted Stock, Beginning Balance								505,473	589,447
Non-vested, Number of Shares of Restricted Stock, Ending Balance				505,473				765,411	505,473	589,447
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Number of Shares of Restricted Stock, Beginning Balance								505,473	589,447	341,529
Granted, Number of Shares of Restricted Stock	7,000	22,817	588,594		2,587	387,000	319,492		618,411	389,587
Vested, Number of Shares of Restricted Stock			(56,250)	(200,000)		(68,091)	(71,574)			(268,091)
Forfeitures, Number of Shares of Restricted Stock				(205,470)				(302,223)	(205,470)
Non-vested, Number of Shares of Restricted Stock, Ending Balance				505,473				765,411	505,473	589,447
Non-vested, Weighted Average Grant Date Fair Value, Beginning Balance								$ 11,173	$ 7,622	$ 1,759
Granted, Weighted Average Grant Date Fair Value	$ 59	$ 234	$ 4,288		$ 27	$ 4,145	$ 6,406		4,581	4,172
Vested, Weighted Average Grant Date Fair Value			$ 527	$ 1,896		$ 694	$ 1,435			2,590
Forfeitures, Weighted Average Grant Date Fair Value								3,222	2,219
Non-vested, Weighted Average Grant Date Fair Value, Ending Balance				$ 11,173				$ 6,162	$ 11,173	$ 7,622
Restricted Stock [Member] | Employee Terminations [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeitures, Number of Shares of Restricted Stock								(33,635)
Forfeitures, Weighted Average Grant Date Fair Value								$ 516
Restricted Stock [Member] | August And November 2014 Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeitures, Number of Shares of Restricted Stock								(95,326)
Forfeitures, Weighted Average Grant Date Fair Value								$ 1,133
Restricted Stock [Member] | August 2015 Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeitures, Number of Shares of Restricted Stock								(173,262)
Forfeitures, Weighted Average Grant Date Fair Value								$ 1,573