Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Accumulated Deficit
Balance (in shares) at Jun. 30, 2017		40,331,645
Balance at Jun. 30, 2017	$ 24,468	$ 245,999	$ (221,531)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in relation to public offering, net of offering costs incurred (in shares)		9,583,332
Issuance of common stock in relation to public offering, net of offering costs incurred	39,888	$ 39,888
Stock based compensation (in shares)		279,754
Stock based compensation	409	$ 409
Excess tax benefit from stock plans	67		67
Net loss	(2,171)		(2,171)
Balance (in shares) at Sep. 30, 2017		50,194,731
Balance at Sep. 30, 2017	62,661	$ 286,296	(223,635)
Balance (in shares) at Jun. 30, 2018		59,998,811
Balance at Jun. 30, 2018	142,688	$ 375,436	(232,748)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation (in shares)		13,344
Stock based compensation	370	$ 370
Net loss	(6,320)		(6,320)
Balance (in shares) at Sep. 30, 2018		60,012,155
Balance at Sep. 30, 2018	$ 137,114	$ 375,806	$ (238,692)