Unaudited Condensed Consolidated Statements 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			91,178,108
Issuance of restricted stock (in shares)			95,575
Share-based compensation	1,910			1,910
Net income (loss)	402						402
Cumulative translation adjustment	1,493					1,493
Balance at Sep. 30, 2020	67,440		$ 91	547,651		1,009	(481,311)
Balance (in shares) at Sep. 30, 2020			91,273,683
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
Issuance of restricted stock (in shares)			97,315
Share-based compensation	$ 2,506			2,506
Net income (loss)	(1,028)						(1,028)
Cumulative translation adjustment	231					231
Balance at Sep. 30, 2021	$ 45,765		$ 91	$ 531,553		$ 2,324	$ (488,203)
Balance (in shares) at Sep. 30, 2021	90,918,976		90,918,976