Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative adjustment due to adoption of ASU No 2020-06	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative adjustment due to adoption of ASU No 2020-06	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit Cumulative adjustment due to adoption of ASU No 2020-06
Balance at Jun. 30, 2021	$ 68,840	$ (24,784)	$ 91	$ 554,680	$ (25,633)	$ 2,093	$ (488,024)	$ 849
Balance (in shares) at Jun. 30, 2021			90,822,000
Issuance of common stock to employees	3,890		$ 3	3,887
Issuance of common stock to employees, (In shares)			2,726,000
Tax withholding upon vesting of restricted stock units	(258)			(258)
Tax withholding upon vesting of restricted stock units (in shares)			(48,000)
Share-based compensation	10,535			10,535
Net Income (Loss)	(5,347)						(5,347)
Cumulative translation adjustment	(3,998)					(3,998)
Change in defined benefit pension obligation	4,311					4,311
Balance at Jun. 30, 2022	53,189		$ 94	543,211		2,406	(492,522)
Balance (in shares) at Jun. 30, 2022			93,500,000
Issuance of common stock to employees	2,200		$ 3	2,197
Issuance of common stock to employees, (In shares)			3,108,000
Tax withholding upon vesting of restricted stock units	(199)			(199)
Tax withholding upon vesting of restricted stock units (in shares)			(73,000)
Share-based compensation	10,053			10,053
Net Income (Loss)	(9,280)						(9,280)
Cumulative translation adjustment	(791)					(791)
Change in defined benefit pension obligation	(1,193)					(1,193)
Other	(320)			14			(334)
Balance at Jun. 30, 2023	$ 53,659		$ 97	555,276		422	(502,136)
Balance (in shares) at Jun. 30, 2023	96,534,609		96,535,000
Issuance of common stock to employees	$ 2,247		$ 3	2,244
Issuance of common stock to employees, (In shares)			3,707,000
Tax withholding upon vesting of restricted stock units	(117)			(117)
Tax withholding upon vesting of restricted stock units (in shares)			(47,000)
Share-based compensation	9,484			9,484
Net Income (Loss)	(15,545)						(15,545)
Cumulative translation adjustment	(2,445)					(2,445)
Change in defined benefit pension obligation	(2,199)					(2,199)
Balance at Jun. 30, 2024	$ 45,084		$ 100	$ 566,887		$ (4,222)	$ (517,681)
Balance (in shares) at Jun. 30, 2024	100,194,932		100,195,000