CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect Period of Adoption Adjustment	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Deficit Cumulative Effect Period of Adoption Adjustment
Balance, beginning at Jun. 30, 2017	$ 11,761		$ 186	$ 112,945	$ (101,370)
Balance, beginning (in shares) at Jun. 30, 2017			18,637,445
Increase (decrease) in stockholders' equity
Share-based compensation activity	1,108		$ 1	1,107
Share-based compensation activity (shares)			44,893
Net income (loss)	39,653				39,653
Balance, ending at Jun. 30, 2018	52,522		$ 187	114,052	(61,717)
Balance, ending (in shares) at Jun. 30, 2018			18,682,338
Increase (decrease) in stockholders' equity
Share-based compensation activity	1,531		$ 1	1,530
Share-based compensation activity (shares)			81,699
Net income (loss)	21,354				21,354
Balance, ending at Jun. 30, 2019	72,316		$ 188	115,582	(43,454)
Balance, ending (in shares) at Jun. 30, 2019			18,764,037
Increase (decrease) in stockholders' equity
Adoption of accounting standards (Note 3)	(43,454)
Adoption of accounting standards (Note 3) | ASU 14-09		$ (3,091)				$ (3,091)
Share-based compensation activity	601		$ 1	600
Share-based compensation activity (shares)			107,600
Net income (loss)	(24,047)				(24,047)
Balance, ending at Jun. 30, 2020	48,870		$ 189	$ 116,182	$ (67,501)
Balance, ending (in shares) at Jun. 30, 2020			18,871,637
Increase (decrease) in stockholders' equity
Adoption of accounting standards (Note 3)	$ (67,501)