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, 2020	$ 63,635		$ 91	$ 545,741		$ (484)	$ (481,713)
Balance (in shares) at Jun. 30, 2020			91,178,000
Issuance of common stock to employees	3,031		$ 3	3,028
Issuance of common stock to employees, (In shares)			2,830,000
Repurchase of common stock	(14,081)		$ (3)	(14,078)
Repurchase of common stock (in shares)			(3,108,000)
Share-based compensation	9,385			9,385
Tax withholding upon vesting of restricted stock units (in shares)			(78,000)
Extinguishment of allocated cost related to convertible note exchange	(14,562)			(14,562)
Bifurcation of conversion option upon issuance of convertible notes	25,166			25,166
Net Income (Loss)	(6,311)						(6,311)
Cumulative translation adjustment	1,705					1,705
Change in defined benefit pension obligation	872					872
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
Share-based compensation	10,535			10,535
Tax withholding upon vesting of restricted stock units	(258)			(258)
Tax withholding upon vesting of restricted stock units (in shares)			(48,000)
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	93,499,500		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
Share-based compensation	10,053			10,053
Tax withholding upon vesting of restricted stock units	(199)			(199)
Tax withholding upon vesting of restricted stock units (in shares)			(73,000)
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