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, 2021	$ 68,840	$ (24,784)	$ 91	$ 554,680	$ (25,633)	$ 2,093	$ (488,024)	$ 849
Balance (in shares) at Jun. 30, 2021			90,822
Issuance of restricted stock (in shares)			97
Share-based compensation	2,506			2,506
Net income (loss)	(1,028)						(1,028)
Foreign currency 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			90,919
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
Net income (loss)	(849)
Foreign currency translation adjustment	123
Balance at Dec. 31, 2021	50,994		$ 93	536,709		2,216	(488,024)
Balance (in shares) at Dec. 31, 2021			92,733
Balance at Sep. 30, 2021	45,765		$ 91	531,553		2,324	(488,203)
Balance (in shares) at Sep. 30, 2021			90,919
Exercise of stock options, net	1,224		$ 1	1,223
Exercise of stock options, net (in shares)			331
Issuance of restricted stock	(258)			(258)
Issuance of restricted stock (in shares)			1,061
Issuance of common stock under employee stock purchase plan	1,524		$ 1	1,523
Issuance of common stock under employee stock purchase plan, shares			422
Share-based compensation	2,668			2,668
Net income (loss)	179						179
Foreign currency translation adjustment	(108)					(108)
Balance at Dec. 31, 2021	50,994		$ 93	536,709		2,216	(488,024)
Balance (in shares) at Dec. 31, 2021			92,733
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
Issuance of restricted stock (in shares)			279
Share-based compensation	$ 2,906			2,906
Net income (loss)	(5,449)						(5,449)
Foreign currency translation adjustment	(3,655)					(3,655)
Balance at Sep. 30, 2022	46,991		$ 94	546,117		(1,249)	(497,971)
Balance (in shares) at Sep. 30, 2022			93,779
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
Net income (loss)	$ (7,323)
Foreign currency translation adjustment	(865)
Balance at Dec. 31, 2022	$ 51,745		$ 95	550,288		1,541	(500,179)
Balance (in shares) at Dec. 31, 2022	95,494,729		95,494
Balance at Sep. 30, 2022	$ 46,991		$ 94	546,117		(1,249)	(497,971)
Balance (in shares) at Sep. 30, 2022			93,779
Issuance of restricted stock	(116)			(116)
Issuance of restricted stock (in shares)			1,062
Issuance of common stock under employee stock purchase plan	1,139		$ 1	1,138
Issuance of common stock under employee stock purchase plan, shares			653
Share-based compensation	3,136			3,136
Net income (loss)	(1,874)						(1,874)
Foreign currency translation adjustment	2,790					2,790
Other	(321)			13			(334)
Balance at Dec. 31, 2022	$ 51,745		$ 95	$ 550,288		$ 1,541	$ (500,179)
Balance (in shares) at Dec. 31, 2022	95,494,729		95,494