Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance at Jun. 30, 2018	$ 148,326	$ 48	$ 277,761	$ (380)	$ (129,103)
Beginning Balance, Shares at Jun. 30, 2018		48,146,384
Issuance of common stock upon exercise of stock options	2,052	$ 0	2,052	0	0
Issuance of common stock upon exercise of stock options, Shares		304,080
Release of restricted stock, net of share settlement	0	$ 1	(1)	0	0
Release of restricted stock, net of share settlement, Shares		695,521
Stock-based compensation expense	3,129	$ 0	3,129	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(5,857)	0	(5,857)	0	0
Net income	5,297	0	0	0	5,297
Other comprehensive income	78	0	0	78	0
Ending Balance at Sep. 30, 2018	153,025	$ 49	277,084	(302)	(123,806)
Ending Balance, Shares at Sep. 30, 2018		49,145,985
Beginning Balance at Jun. 30, 2019	$ 222,829	$ 50	289,768	(366)	(66,623)
Beginning Balance, Shares at Jun. 30, 2019	50,518,460	50,518,460
Issuance of common stock upon exercise of stock options	$ 1,790	$ 0	1,790	0	0
Issuance of common stock upon exercise of stock options, Shares		260,061
Release of restricted stock, net of share settlement	0	$ 1	(1)	0	0
Release of restricted stock, net of share settlement, Shares		323,818
Stock-based compensation expense	4,667	$ 0	4,667	0	0
Withholding taxes related to release of restricted stock, net of share settlement	(2,358)	0	(2,358)	0	0
Net income	1,132	0	0	0	1,132
Other comprehensive income	31	0	0	31	0
Ending Balance at Sep. 30, 2019	$ 228,091	$ 51	$ 293,866	$ (335)	$ (65,491)
Ending Balance, Shares at Sep. 30, 2019	51,102,339	51,102,339