Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect Period of Adoption Adjustment	Common Stock	Additional Paid-In Capital	Retained Deficit	Retained Deficit Cumulative Effect Period of Adoption Adjustment	Treasury Stock
Balance at Jun. 30, 2019	$ 171,309	$ (601)	$ 465	$ 241,456	$ (63,800)	$ (601)	$ (6,812)
Balance (in shares) at Jun. 30, 2019			46,683,000
Net income (loss)	(9,629)				(9,629)
Share-based compensation	720			720
Shares issued or canceled in connection with employee stock incentive plans and related tax effect			$ (3)	3
Shares issued or canceled in connection with employee stock incentive plans and related tax effect (in shares)			1,055,000
Balance at Sep. 30, 2019	161,799		$ 462	242,179	(74,030)		(6,812)
Balance (in shares) at Sep. 30, 2019			47,738,000
Balance at Jun. 30, 2020	$ 6,935		$ 455	244,021	(230,729)		(6,812)
Balance (in shares) at Jun. 30, 2020	47,340,652		47,341,000
Net income (loss)	$ 18,624				18,624
Share-based compensation	428			428
Shares issued or canceled in connection with employee stock incentive plans and related tax effect			$ (5)	5
Shares issued or canceled in connection with employee stock incentive plans and related tax effect (in shares)			(490,000)
Balance at Sep. 30, 2020	$ 25,987		$ 450	$ 244,454	$ (212,105)		$ (6,812)
Balance (in shares) at Sep. 30, 2020	46,851,048		46,851,000