Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance, value at Jun. 30, 2017	$ 118,389	$ 33	$ 447,559	$ 100	$ (329,303)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation related to restricted stock awards, net, value	3,380	0	3,380
Exercise of stock option, value	307	0	307
Unrealized gain on marketable securities	12			12
Net gain reclassified from accumulated other comprehensive income	(8)			(8)
Net loss	(1,977)				(1,977)
Ending balance, value at Sep. 30, 2017	120,103	33	451,246	104	(331,280)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Impact from adoption of ASU 2016-01 (See Note 5)				(101)	101
Beginning balance, value at Jun. 30, 2018	134,470	33	461,927	101	(327,591)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation related to restricted stock awards, net, value	3,384	0	3,384
Shares withheld for employee taxes, value	(1,058)		0		(1,058)
Exercise of stock option, value	71	0	71
Net gain reclassified from accumulated other comprehensive income	0
Net loss	(2,888)				(2,888)
Ending balance, value at Sep. 30, 2018	$ 133,979	$ 33	$ 465,382	$ 0	$ (331,436)