CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance, beginning at Jun. 30, 2019	$ 39	$ 317,023	$ 32,075	$ (615)	$ (14,481)	$ 334,041
Balance, beginning (in shares) at Jun. 30, 2019	38,970
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	$ 1	777				778
Shares issued in connection with share-based compensation plans (in shares)	929
Share-based compensation		8,336				8,336
Purchase of treasury stock					(1,854)	(1,854)
Other comprehensive income (Loss)				(26)		(26)
Purchase of capped call		(7,072)				(7,072)
Net loss			(23,665)			(23,665)
Balance, ending at Mar. 31, 2020	$ 40	319,064	8,410	(641)	(16,335)	310,538
Balance, ending (in shares) at Mar. 31, 2020	39,899
Balance, beginning at Dec. 31, 2019	$ 40	317,012	25,002	(578)	(16,304)	325,172
Balance, beginning (in shares) at Dec. 31, 2019	39,852
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans		182				182
Shares issued in connection with share-based compensation plans (in shares)	47
Share-based compensation		1,870				1,870
Purchase of treasury stock					(31)	(31)
Other comprehensive income (Loss)				(63)		(63)
Net loss			(16,592)			(16,592)
Balance, ending at Mar. 31, 2020	$ 40	319,064	8,410	(641)	(16,335)	310,538
Balance, ending (in shares) at Mar. 31, 2020	39,899
Balance, beginning at Jun. 30, 2020	$ 40	321,164	(1,291)	(627)	(16,390)	302,896
Balance, beginning (in shares) at Jun. 30, 2020	39,963
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	$ 1	551				552
Shares issued in connection with share-based compensation plans (in shares)	909
Share-based compensation		7,196				7,196
Purchase of treasury stock					(1,029)	(1,029)
Other comprehensive income (Loss)				24		24
Net loss			(185,589)			(185,589)
Balance, ending at Mar. 31, 2021	$ 41	328,911	(186,880)	(603)	(17,419)	124,050
Balance, ending (in shares) at Mar. 31, 2021	40,872
Balance, beginning at Dec. 31, 2020	$ 41	326,939	(179,738)	(595)	(17,389)	129,258
Balance, beginning (in shares) at Dec. 31, 2020	40,832
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans		109				109
Shares issued in connection with share-based compensation plans (in shares)	40
Share-based compensation		1,863				1,863
Purchase of treasury stock					(30)	(30)
Other comprehensive income (Loss)				(8)		(8)
Net loss			(7,142)			(7,142)
Balance, ending at Mar. 31, 2021	$ 41	$ 328,911	$ (186,880)	$ (603)	$ (17,419)	$ 124,050
Balance, ending (in shares) at Mar. 31, 2021	40,872