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, 2019	$ 49,871		$ 89	$ 535,332		$ (10)	$ (485,540)
Balance (in shares) at Jun. 30, 2019			88,521,511
Issuance of restricted stock	(206)		$ 1	(207)
Issuance of restricted stock (in shares)			1,579,037
Issuance of common stock under employee stock purchase plan	2,451		$ 1	2,450
Issuance of common stock under employee stock purchase plan (in shares)			1,136,096
Share-based compensation	8,166			8,166
Tax withholding upon vesting of restricted stock units (in shares)			(58,536)
Net income	3,827						3,827
Cumulative translation adjustment	(238)					(238)
Change in defined benefit pension obligation	(236)					(236)
Balance at Jun. 30, 2020	63,635		$ 91	545,741		(484)	(481,713)
Balance (in shares) at Jun. 30, 2020			91,178,108
Exercise of options, net	855			855
Exercise of options, net (in shares)			209,008
Issuance of restricted stock	2		$ 2
Issuance of restricted stock (in shares)			1,452,618
Issuance of common stock under employee stock purchase plan	2,174		$ 1	2,173
Issuance of common stock under employee stock purchase plan (in shares)			1,168,220
Repurchase of common stock	(14,081)		$ (3)	(14,078)
Repurchase of common stock (in shares)			(3,108,369)
Share-based compensation	9,385			9,385
Tax withholding upon vesting of restricted stock units (in shares)			(77,924)
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	(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	90,821,661		90,821,661
Exercise of options, net	$ 1,224		$ 1	1,223
Exercise of options, net (in shares)			331,401
Issuance of restricted stock	(257)		$ 1	(258)
Issuance of restricted stock (in shares)			1,292,744
Issuance of common stock under employee stock purchase plan	2,665		$ 1	2,664
Issuance of common stock under employee stock purchase plan (in shares)			1,053,694
Share-based compensation	10,535			10,535
Net income	(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		93,499,500