Consolidated Statements of Shareholders' Equity - 9 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Series A Convertible Conversion of preferred stock	Common stock equivalents	Accumulated Deficit	Total
Balance at Jun. 30, 2017	$ 3,138	$ 245,999	$ (183,359)	$ 65,778
Balance (in shares) at Jun. 30, 2017	445,063	40,331,645
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in relation to public offering, net of offering costs incurred of $3,237 (a) (in shares)		9,583,332
Issuance of common stock in relation to public offering, net of offering costs incurred of $3,237 (a)		$ 39,888		39,888
Issuance of common stock as merger consideration (in shares)		3,423,367
Issuance of common stock as merger consideration		$ 19,810		19,810
Stock based compensation		$ 2,114		2,114
Stock based compensation (in shares)		347,975
Excess tax benefits from stock plans			67	67
Retirement of common stock		$ (177)		(177)
Retirement of common stock (in shares)		(19,601)
Net loss			(11,569)	(11,569)
Balance at Mar. 31, 2018	$ 3,138	$ 307,634	$ (194,861)	$ 115,911
Balance (in shares) at Mar. 31, 2018	445,063	53,666,718