Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Deficit	Treasury Stock
Balance at Jun. 30, 2020	$ 6,935	$ 455	$ 244,021	$ (230,729)	$ (6,812)
Balance (in shares) at Jun. 30, 2020		47,341,000
Net (loss) earnings	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		46,851,000
Balance at Jun. 30, 2020	6,935	$ 455	244,021	(230,729)	(6,812)
Balance (in shares) at Jun. 30, 2020		47,341,000
Net (loss) earnings	58,963
Balance at Dec. 31, 2020	66,641	$ 450	244,769	(171,766)	(6,812)
Balance (in shares) at Dec. 31, 2020		46,846,000
Balance at Sep. 30, 2020	25,987	$ 450	244,454	(212,105)	(6,812)
Balance (in shares) at Sep. 30, 2020		46,851,000
Net (loss) earnings	40,339			40,339
Share-based compensation	315		315
Shares issued or canceled in connection with employee stock incentive plans and related tax effect (in shares)		(5,000)
Balance at Dec. 31, 2020	66,641	$ 450	244,769	(171,766)	(6,812)
Balance (in shares) at Dec. 31, 2020		46,846,000
Balance at Jun. 30, 2021	$ 71,801	$ 862	305,498	(227,747)	(6,812)
Balance (in shares) at Jun. 30, 2021	86,204,572	86,205,000
Net (loss) earnings	$ (14,603)			(14,603)
Share-based compensation	1,155		1,155
Shares issued or canceled in connection with employee stock incentive plans and related tax effect	451	$ (4)	455
Shares issued or canceled in connection with employee stock incentive plans and related tax effect (in shares)		(434,000)
Balance at Sep. 30, 2021	58,804	$ 858	307,108	(242,350)	(6,812)
Balance (in shares) at Sep. 30, 2021		85,771,000
Balance at Jun. 30, 2021	$ 71,801	$ 862	305,498	(227,747)	(6,812)
Balance (in shares) at Jun. 30, 2021	86,204,572	86,205,000
Net (loss) earnings	$ (12,709)
Balance at Dec. 31, 2021	$ 62,531	$ 858	308,941	(240,456)	(6,812)
Balance (in shares) at Dec. 31, 2021	85,765,429	85,765,000
Balance at Sep. 30, 2021	$ 58,804	$ 858	307,108	(242,350)	(6,812)
Balance (in shares) at Sep. 30, 2021		85,771,000
Net (loss) earnings	1,894			1,894
Share-based compensation	1,833		1,833
Shares issued or canceled in connection with employee stock incentive plans and related tax effect (in shares)		(6,000)
Balance at Dec. 31, 2021	$ 62,531	$ 858	$ 308,941	$ (240,456)	$ (6,812)
Balance (in shares) at Dec. 31, 2021	85,765,429	85,765,000