CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Sep. 30, 2022		44,680,000
Beginning Balance at Sep. 30, 2022	$ 170,980	$ 44	$ 216,493	$ (17,338)	$ (28,219)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		83,000
Exercise of stock options	662		662
Settlement of restricted stock units (in shares)		486,000
Settlement of restricted stock units	0	$ 1	(1)
Stock-based compensation expense	2,442		2,442
Components of comprehensive income:
Net (loss) income	4,726			4,726
Currency translation adjustment	12,703				12,703
Change in unrealized gain (loss) on investments	352				352
Comprehensive income	17,781
Ending balance (in shares) at Dec. 31, 2022		45,249,000
Ending Balance at Dec. 31, 2022	$ 191,865	$ 45	219,596	(12,612)	(15,164)
Beginning balance (in shares) at Sep. 30, 2023	45,591,199	45,591,000
Beginning Balance at Sep. 30, 2023	$ 205,188	$ 46	228,691	(9,312)	(14,237)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	96,634	97,000
Exercise of stock options	$ 856		856
Settlement of restricted stock units (in shares)		633,000
Settlement of restricted stock units	0	$ 1	(1)
Acquisition-related shares issued (in shares)		311,000
Acquisition-related shares issued	3,471		3,471
Stock-based compensation expense	3,430		3,430
Components of comprehensive income:
Net (loss) income	(5,793)			(5,793)
Currency translation adjustment	6,544				6,544
Change in unrealized gain (loss) on investments	102				102
Comprehensive income	$ 853
Ending balance (in shares) at Dec. 31, 2023	46,631,594	46,632,000
Ending Balance at Dec. 31, 2023	$ 213,798	$ 47	$ 236,447	$ (15,105)	$ (7,591)