CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Treasury Shares	Additional Paid-In Capital	Accumulated Other Comprehensive Income ( Loss)	Retained Earnings
Beginning balance at Jun. 30, 2024	$ 891,607	$ 72	$ (79,213)	$ 353,109	$ (13,419)	$ 631,058
Beginning balance ( in shares) at Jun. 30, 2024		36,107,000
Beginning balance (in shares) at Jun. 30, 2024			7,138,000
Increase (Decrease) in Stockholders' Equity
Exercise of common stock options and release of restricted stock units	$ 91			91
Exercise of common stock options and release of restricted stock units (in shares)	109,000
Reissuance of treasury stock upon exercise of common stock options and release of RSUs (in shares)			3,000
Stock Issued During Period, Value, Treasury Stock Reissued	$ 0		$ 21			(21)
Withholding tax on restricted stock units	(978)			(978)
Withholding tax on restricted stock units (in shares)		(26,000)
Issuance of shares under ESPP (in shares)		177,000
Stock Issued During Period, Value, Employee Stock Purchase Plan	3,421	$ 1		3,420
Share-based compensation	14,852			14,852
Net loss	(9,110)					(9,110)
Foreign currency translation adjustment, net of tax	2,697				2,697
The change of equity interest in the JV Company	0
Ending balance at Dec. 31, 2024	902,580	$ 73	$ (79,192)	370,494	(10,722)	621,927
Ending balance ( in shares) at Dec. 31, 2024		36,367,000
Ending balance (in shares) at Dec. 31, 2024			7,135,000
Beginning balance at Sep. 30, 2024	895,272	$ 72	$ (79,213)	359,429	(13,578)	628,562
Beginning balance ( in shares) at Sep. 30, 2024		36,162,000
Beginning balance (in shares) at Sep. 30, 2024			7,138,000
Increase (Decrease) in Stockholders' Equity
Exercise of common stock options and release of restricted stock units	$ 0			0
Exercise of common stock options and release of restricted stock units (in shares)	36,000
Reissuance of treasury stock upon exercise of common stock options and release of RSUs (in shares)			3,000
Stock Issued During Period, Value, Treasury Stock Reissued	$ 0		$ 21			(21)
Withholding tax on restricted stock units	(305)			(305)
Withholding tax on restricted stock units (in shares)		(8,000)
Issuance of shares under ESPP (in shares)		177,000
Stock Issued During Period, Value, Employee Stock Purchase Plan	3,421	$ 1		3,420
Share-based compensation	7,950			7,950
Net loss	(6,614)					(6,614)
Foreign currency translation adjustment, net of tax	2,856				2,856
The change of equity interest in the JV Company	0
Ending balance at Dec. 31, 2024	902,580	$ 73	$ (79,192)	370,494	(10,722)	621,927
Ending balance ( in shares) at Dec. 31, 2024		36,367,000
Ending balance (in shares) at Dec. 31, 2024			7,135,000
Beginning balance at Jun. 30, 2025	$ 822,332	$ 74	$ (79,058)	379,779	(12,390)	533,927
Beginning balance ( in shares) at Jun. 30, 2025	37,127,000	37,127,000
Beginning balance (in shares) at Jun. 30, 2025	7,118,000		7,118,000
Increase (Decrease) in Stockholders' Equity
Release of Restricted Stock Units		97,000
Reissuance of treasury stock upon exercise of common stock options and release of RSUs (in shares)			2,000
Stock Issued During Period, Value, Treasury Stock Reissued	$ 0		$ 16			(16)
Withholding tax on restricted stock units	(701)			(701)
Withholding tax on restricted stock units (in shares)		(27,000)
Issuance of shares under ESPP (in shares)		229,000
Stock Issued During Period, Value, Employee Stock Purchase Plan	3,590	$ 1		3,589
Repurchase of common shares under shares repurchase program	$ (14,096)		$ (14,096)
Repurchase of common shares under shares repurchase program (in shares)	(728,373)		(728,000)
Share-based compensation	$ 15,405			15,405
Net loss	(15,415)					(15,415)
Foreign currency translation adjustment, net of tax	7,653				7,653
The change of equity interest in the JV Company	7,992
Ending balance at Dec. 31, 2025	$ 818,768	$ 75	$ (93,138)	398,072	(4,737)	518,496
Ending balance ( in shares) at Dec. 31, 2025	37,426,000	37,426,000
Ending balance (in shares) at Dec. 31, 2025	7,844,000		7,844,000
Beginning balance at Sep. 30, 2025	$ 834,104	$ 74	$ (79,058)	386,470	(5,187)	531,805
Beginning balance ( in shares) at Sep. 30, 2025		37,171,000
Beginning balance (in shares) at Sep. 30, 2025			7,118,000
Increase (Decrease) in Stockholders' Equity
Release of Restricted Stock Units		37,000
Reissuance of treasury stock upon exercise of common stock options and release of RSUs (in shares)			2,000
Stock Issued During Period, Value, Treasury Stock Reissued	0		$ 16			(16)
Withholding tax on restricted stock units	(260)			(260)
Withholding tax on restricted stock units (in shares)		(11,000)
Issuance of shares under ESPP (in shares)		229,000
Stock Issued During Period, Value, Employee Stock Purchase Plan	3,590	$ 1		3,589
Repurchase of common shares under shares repurchase program	$ (14,096)		$ (14,096)
Repurchase of common shares under shares repurchase program (in shares)	(728,373)		(728,000)
Share-based compensation	$ 8,273			8,273
Net loss	(13,293)					(13,293)
Foreign currency translation adjustment, net of tax	450				450
The change of equity interest in the JV Company	0
Ending balance at Dec. 31, 2025	$ 818,768	$ 75	$ (93,138)	$ 398,072	$ (4,737)	$ 518,496
Ending balance ( in shares) at Dec. 31, 2025	37,426,000	37,426,000
Ending balance (in shares) at Dec. 31, 2025	7,844,000		7,844,000